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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
[deliverable/linux.git] / drivers / scsi / aha152x.c
1 /* aha152x.c -- Adaptec AHA-152x driver
2 * Author: Jürgen E. Fischer, fischer@norbit.de
3 * Copyright 1993-2004 Jürgen E. Fischer
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2, or (at your option) any
8 * later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 *
16 * $Id: aha152x.c,v 2.7 2004/01/24 11:42:59 fischer Exp $
17 *
18 * $Log: aha152x.c,v $
19 * Revision 2.7 2004/01/24 11:42:59 fischer
20 * - gather code that is not used by PCMCIA at the end
21 * - move request_region for !PCMCIA case to detection
22 * - migration to new scsi host api (remove legacy code)
23 * - free host scribble before scsi_done
24 * - fix error handling
25 * - one isapnp device added to id_table
26 *
27 * Revision 2.6 2003/10/30 20:52:47 fischer
28 * - interfaces changes for kernel 2.6
29 * - aha152x_probe_one introduced for pcmcia stub
30 * - fixed pnpdev handling
31 * - instead of allocation a new one, reuse command for request sense after check condition and reset
32 * - fixes race in is_complete
33 *
34 * Revision 2.5 2002/04/14 11:24:53 fischer
35 * - isapnp support
36 * - abort fixed
37 * - 2.5 support
38 *
39 * Revision 2.4 2000/12/16 12:53:56 fischer
40 * - allow REQUEST SENSE to be queued
41 * - handle shared PCI interrupts
42 *
43 * Revision 2.3 2000/11/04 16:40:26 fischer
44 * - handle data overruns
45 * - extend timeout for data phases
46 *
47 * Revision 2.2 2000/08/08 19:54:53 fischer
48 * - minor changes
49 *
50 * Revision 2.1 2000/05/17 16:23:17 fischer
51 * - signature update
52 * - fix for data out w/o scatter gather
53 *
54 * Revision 2.0 1999/12/25 15:07:32 fischer
55 * - interrupt routine completly reworked
56 * - basic support for new eh code
57 *
58 * Revision 1.21 1999/11/10 23:46:36 fischer
59 * - default to synchronous operation
60 * - synchronous negotiation fixed
61 * - added timeout to loops
62 * - debugging output can be controlled through procfs
63 *
64 * Revision 1.20 1999/11/07 18:37:31 fischer
65 * - synchronous operation works
66 * - resid support for sg driver
67 *
68 * Revision 1.19 1999/11/02 22:39:59 fischer
69 * - moved leading comments to README.aha152x
70 * - new additional module parameters
71 * - updates for 2.3
72 * - support for the Tripace TC1550 controller
73 * - interrupt handling changed
74 *
75 * Revision 1.18 1996/09/07 20:10:40 fischer
76 * - fixed can_queue handling (multiple outstanding commands working again)
77 *
78 * Revision 1.17 1996/08/17 16:05:14 fischer
79 * - biosparam improved
80 * - interrupt verification
81 * - updated documentation
82 * - cleanups
83 *
84 * Revision 1.16 1996/06/09 00:04:56 root
85 * - added configuration symbols for insmod (aha152x/aha152x1)
86 *
87 * Revision 1.15 1996/04/30 14:52:06 fischer
88 * - proc info fixed
89 * - support for extended translation for >1GB disks
90 *
91 * Revision 1.14 1996/01/17 15:11:20 fischer
92 * - fixed lockup in MESSAGE IN phase after reconnection
93 *
94 * Revision 1.13 1996/01/09 02:15:53 fischer
95 * - some cleanups
96 * - moved request_irq behind controller initialization
97 * (to avoid spurious interrupts)
98 *
99 * Revision 1.12 1995/12/16 12:26:07 fischer
100 * - barrier()s added
101 * - configurable RESET delay added
102 *
103 * Revision 1.11 1995/12/06 21:18:35 fischer
104 * - some minor updates
105 *
106 * Revision 1.10 1995/07/22 19:18:45 fischer
107 * - support for 2 controllers
108 * - started synchronous data transfers (not working yet)
109 *
110 * Revision 1.9 1995/03/18 09:20:24 root
111 * - patches for PCMCIA and modules
112 *
113 * Revision 1.8 1995/01/21 22:07:19 root
114 * - snarf_region => request_region
115 * - aha152x_intr interface change
116 *
117 * Revision 1.7 1995/01/02 23:19:36 root
118 * - updated COMMAND_SIZE to cmd_len
119 * - changed sti() to restore_flags()
120 * - fixed some #ifdef which generated warnings
121 *
122 * Revision 1.6 1994/11/24 20:35:27 root
123 * - problem with odd number of bytes in fifo fixed
124 *
125 * Revision 1.5 1994/10/30 14:39:56 root
126 * - abort code fixed
127 * - debugging improved
128 *
129 * Revision 1.4 1994/09/12 11:33:01 root
130 * - irqaction to request_irq
131 * - abortion updated
132 *
133 * Revision 1.3 1994/08/04 13:53:05 root
134 * - updates for mid-level-driver changes
135 * - accept unexpected BUSFREE phase as error condition
136 * - parity check now configurable
137 *
138 * Revision 1.2 1994/07/03 12:56:36 root
139 * - cleaned up debugging code
140 * - more tweaking on reset delays
141 * - updated abort/reset code (pretty untested...)
142 *
143 * Revision 1.1 1994/05/28 21:18:49 root
144 * - update for mid-level interface change (abort-reset)
145 * - delays after resets adjusted for some slow devices
146 *
147 * Revision 1.0 1994/03/25 12:52:00 root
148 * - Fixed "more data than expected" problem
149 * - added new BIOS signatures
150 *
151 * Revision 0.102 1994/01/31 20:44:12 root
152 * - minor changes in insw/outsw handling
153 *
154 * Revision 0.101 1993/12/13 01:16:27 root
155 * - fixed STATUS phase (non-GOOD stati were dropped sometimes;
156 * fixes problems with CD-ROM sector size detection & media change)
157 *
158 * Revision 0.100 1993/12/10 16:58:47 root
159 * - fix for unsuccessful selections in case of non-continuous id assignments
160 * on the scsi bus.
161 *
162 * Revision 0.99 1993/10/24 16:19:59 root
163 * - fixed DATA IN (rare read errors gone)
164 *
165 * Revision 0.98 1993/10/17 12:54:44 root
166 * - fixed some recent fixes (shame on me)
167 * - moved initialization of scratch area to aha152x_queue
168 *
169 * Revision 0.97 1993/10/09 18:53:53 root
170 * - DATA IN fixed. Rarely left data in the fifo.
171 *
172 * Revision 0.96 1993/10/03 00:53:59 root
173 * - minor changes on DATA IN
174 *
175 * Revision 0.95 1993/09/24 10:36:01 root
176 * - change handling of MSGI after reselection
177 * - fixed sti/cli
178 * - minor changes
179 *
180 * Revision 0.94 1993/09/18 14:08:22 root
181 * - fixed bug in multiple outstanding command code
182 * - changed detection
183 * - support for kernel command line configuration
184 * - reset corrected
185 * - changed message handling
186 *
187 * Revision 0.93 1993/09/15 20:41:19 root
188 * - fixed bugs with multiple outstanding commands
189 *
190 * Revision 0.92 1993/09/13 02:46:33 root
191 * - multiple outstanding commands work (no problems with IBM drive)
192 *
193 * Revision 0.91 1993/09/12 20:51:46 root
194 * added multiple outstanding commands
195 * (some problem with this $%&? IBM device remain)
196 *
197 * Revision 0.9 1993/09/12 11:11:22 root
198 * - corrected auto-configuration
199 * - changed the auto-configuration (added some '#define's)
200 * - added support for dis-/reconnection
201 *
202 * Revision 0.8 1993/09/06 23:09:39 root
203 * - added support for the drive activity light
204 * - minor changes
205 *
206 * Revision 0.7 1993/09/05 14:30:15 root
207 * - improved phase detection
208 * - now using the new snarf_region code of 0.99pl13
209 *
210 * Revision 0.6 1993/09/02 11:01:38 root
211 * first public release; added some signatures and biosparam()
212 *
213 * Revision 0.5 1993/08/30 10:23:30 root
214 * fixed timing problems with my IBM drive
215 *
216 * Revision 0.4 1993/08/29 14:06:52 root
217 * fixed some problems with timeouts due incomplete commands
218 *
219 * Revision 0.3 1993/08/28 15:55:03 root
220 * writing data works too. mounted and worked on a dos partition
221 *
222 * Revision 0.2 1993/08/27 22:42:07 root
223 * reading data works. Mounted a msdos partition.
224 *
225 * Revision 0.1 1993/08/25 13:38:30 root
226 * first "damn thing doesn't work" version
227 *
228 * Revision 0.0 1993/08/14 19:54:25 root
229 * empty function bodies; detect() works.
230 *
231 *
232 **************************************************************************
233
234 see Documentation/scsi/aha152x.txt for configuration details
235
236 **************************************************************************/
237
238 #include <linux/module.h>
239 #include <asm/irq.h>
240 #include <linux/io.h>
241 #include <linux/blkdev.h>
242 #include <asm/system.h>
243 #include <linux/completion.h>
244 #include <linux/errno.h>
245 #include <linux/string.h>
246 #include <linux/wait.h>
247 #include <linux/ioport.h>
248 #include <linux/delay.h>
249 #include <linux/proc_fs.h>
250 #include <linux/interrupt.h>
251 #include <linux/init.h>
252 #include <linux/kernel.h>
253 #include <linux/isapnp.h>
254 #include <linux/spinlock.h>
255 #include <linux/workqueue.h>
256 #include <linux/list.h>
257 #include <linux/slab.h>
258 #include <scsi/scsicam.h>
259
260 #include "scsi.h"
261 #include <scsi/scsi_dbg.h>
262 #include <scsi/scsi_host.h>
263 #include <scsi/scsi_transport_spi.h>
264 #include <scsi/scsi_eh.h>
265 #include "aha152x.h"
266
267 static LIST_HEAD(aha152x_host_list);
268
269
270 /* DEFINES */
271
272 /* For PCMCIA cards, always use AUTOCONF */
273 #if defined(PCMCIA) || defined(MODULE)
274 #if !defined(AUTOCONF)
275 #define AUTOCONF
276 #endif
277 #endif
278
279 #if !defined(AUTOCONF) && !defined(SETUP0)
280 #error define AUTOCONF or SETUP0
281 #endif
282
283 #if defined(AHA152X_DEBUG)
284 #define DEBUG_DEFAULT debug_eh
285
286 #define DPRINTK(when,msgs...) \
287 do { if(HOSTDATA(shpnt)->debug & (when)) printk(msgs); } while(0)
288
289 #define DO_LOCK(flags) \
290 do { \
291 if(spin_is_locked(&QLOCK)) { \
292 DPRINTK(debug_intr, DEBUG_LEAD "(%s:%d) already locked at %s:%d\n", CMDINFO(CURRENT_SC), __func__, __LINE__, QLOCKER, QLOCKERL); \
293 } \
294 DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) locking\n", CMDINFO(CURRENT_SC), __func__, __LINE__); \
295 spin_lock_irqsave(&QLOCK,flags); \
296 DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) locked\n", CMDINFO(CURRENT_SC), __func__, __LINE__); \
297 QLOCKER=__func__; \
298 QLOCKERL=__LINE__; \
299 } while(0)
300
301 #define DO_UNLOCK(flags) \
302 do { \
303 DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) unlocking (locked at %s:%d)\n", CMDINFO(CURRENT_SC), __func__, __LINE__, QLOCKER, QLOCKERL); \
304 spin_unlock_irqrestore(&QLOCK,flags); \
305 DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) unlocked\n", CMDINFO(CURRENT_SC), __func__, __LINE__); \
306 QLOCKER="(not locked)"; \
307 QLOCKERL=0; \
308 } while(0)
309
310 #else
311 #define DPRINTK(when,msgs...)
312 #define DO_LOCK(flags) spin_lock_irqsave(&QLOCK,flags)
313 #define DO_UNLOCK(flags) spin_unlock_irqrestore(&QLOCK,flags)
314 #endif
315
316 #define LEAD "(scsi%d:%d:%d) "
317 #define WARN_LEAD KERN_WARNING LEAD
318 #define INFO_LEAD KERN_INFO LEAD
319 #define NOTE_LEAD KERN_NOTICE LEAD
320 #define ERR_LEAD KERN_ERR LEAD
321 #define DEBUG_LEAD KERN_DEBUG LEAD
322 #define CMDINFO(cmd) \
323 (cmd) ? ((cmd)->device->host->host_no) : -1, \
324 (cmd) ? ((cmd)->device->id & 0x0f) : -1, \
325 (cmd) ? ((cmd)->device->lun & 0x07) : -1
326
327 static inline void
328 CMD_INC_RESID(struct scsi_cmnd *cmd, int inc)
329 {
330 scsi_set_resid(cmd, scsi_get_resid(cmd) + inc);
331 }
332
333 #define DELAY_DEFAULT 1000
334
335 #if defined(PCMCIA)
336 #define IRQ_MIN 0
337 #define IRQ_MAX 16
338 #else
339 #define IRQ_MIN 9
340 #if defined(__PPC)
341 #define IRQ_MAX (nr_irqs-1)
342 #else
343 #define IRQ_MAX 12
344 #endif
345 #endif
346
347 enum {
348 not_issued = 0x0001, /* command not yet issued */
349 selecting = 0x0002, /* target is beeing selected */
350 identified = 0x0004, /* IDENTIFY was sent */
351 disconnected = 0x0008, /* target disconnected */
352 completed = 0x0010, /* target sent COMMAND COMPLETE */
353 aborted = 0x0020, /* ABORT was sent */
354 resetted = 0x0040, /* BUS DEVICE RESET was sent */
355 spiordy = 0x0080, /* waiting for SPIORDY to raise */
356 syncneg = 0x0100, /* synchronous negotiation in progress */
357 aborting = 0x0200, /* ABORT is pending */
358 resetting = 0x0400, /* BUS DEVICE RESET is pending */
359 check_condition = 0x0800, /* requesting sense after CHECK CONDITION */
360 };
361
362 MODULE_AUTHOR("Jürgen Fischer");
363 MODULE_DESCRIPTION(AHA152X_REVID);
364 MODULE_LICENSE("GPL");
365
366 #if !defined(PCMCIA)
367 #if defined(MODULE)
368 static int io[] = {0, 0};
369 module_param_array(io, int, NULL, 0);
370 MODULE_PARM_DESC(io,"base io address of controller");
371
372 static int irq[] = {0, 0};
373 module_param_array(irq, int, NULL, 0);
374 MODULE_PARM_DESC(irq,"interrupt for controller");
375
376 static int scsiid[] = {7, 7};
377 module_param_array(scsiid, int, NULL, 0);
378 MODULE_PARM_DESC(scsiid,"scsi id of controller");
379
380 static int reconnect[] = {1, 1};
381 module_param_array(reconnect, int, NULL, 0);
382 MODULE_PARM_DESC(reconnect,"allow targets to disconnect");
383
384 static int parity[] = {1, 1};
385 module_param_array(parity, int, NULL, 0);
386 MODULE_PARM_DESC(parity,"use scsi parity");
387
388 static int sync[] = {1, 1};
389 module_param_array(sync, int, NULL, 0);
390 MODULE_PARM_DESC(sync,"use synchronous transfers");
391
392 static int delay[] = {DELAY_DEFAULT, DELAY_DEFAULT};
393 module_param_array(delay, int, NULL, 0);
394 MODULE_PARM_DESC(delay,"scsi reset delay");
395
396 static int exttrans[] = {0, 0};
397 module_param_array(exttrans, int, NULL, 0);
398 MODULE_PARM_DESC(exttrans,"use extended translation");
399
400 #if !defined(AHA152X_DEBUG)
401 static int aha152x[] = {0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0};
402 module_param_array(aha152x, int, NULL, 0);
403 MODULE_PARM_DESC(aha152x, "parameters for first controller");
404
405 static int aha152x1[] = {0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0};
406 module_param_array(aha152x1, int, NULL, 0);
407 MODULE_PARM_DESC(aha152x1, "parameters for second controller");
408 #else
409 static int debug[] = {DEBUG_DEFAULT, DEBUG_DEFAULT};
410 module_param_array(debug, int, NULL, 0);
411 MODULE_PARM_DESC(debug, "flags for driver debugging");
412
413 static int aha152x[] = {0, 11, 7, 1, 1, 1, DELAY_DEFAULT, 0, DEBUG_DEFAULT};
414 module_param_array(aha152x, int, NULL, 0);
415 MODULE_PARM_DESC(aha152x, "parameters for first controller");
416
417 static int aha152x1[] = {0, 11, 7, 1, 1, 1, DELAY_DEFAULT, 0, DEBUG_DEFAULT};
418 module_param_array(aha152x1, int, NULL, 0);
419 MODULE_PARM_DESC(aha152x1, "parameters for second controller");
420 #endif /* !defined(AHA152X_DEBUG) */
421 #endif /* MODULE */
422
423 #ifdef __ISAPNP__
424 static struct isapnp_device_id id_table[] __devinitdata = {
425 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
426 ISAPNP_VENDOR('A','D','P'), ISAPNP_FUNCTION(0x1505), 0 },
427 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
428 ISAPNP_VENDOR('A','D','P'), ISAPNP_FUNCTION(0x1530), 0 },
429 { ISAPNP_DEVICE_SINGLE_END, }
430 };
431 MODULE_DEVICE_TABLE(isapnp, id_table);
432 #endif /* ISAPNP */
433
434 #endif /* !PCMCIA */
435
436 static struct scsi_host_template aha152x_driver_template;
437
438 /*
439 * internal states of the host
440 *
441 */
442 enum aha152x_state {
443 idle=0,
444 unknown,
445 seldo,
446 seldi,
447 selto,
448 busfree,
449 msgo,
450 cmd,
451 msgi,
452 status,
453 datai,
454 datao,
455 parerr,
456 rsti,
457 maxstate
458 };
459
460 /*
461 * current state information of the host
462 *
463 */
464 struct aha152x_hostdata {
465 Scsi_Cmnd *issue_SC;
466 /* pending commands to issue */
467
468 Scsi_Cmnd *current_SC;
469 /* current command on the bus */
470
471 Scsi_Cmnd *disconnected_SC;
472 /* commands that disconnected */
473
474 Scsi_Cmnd *done_SC;
475 /* command that was completed */
476
477 spinlock_t lock;
478 /* host lock */
479
480 #if defined(AHA152X_DEBUG)
481 const char *locker;
482 /* which function has the lock */
483 int lockerl; /* where did it get it */
484
485 int debug; /* current debugging setting */
486 #endif
487
488 #if defined(AHA152X_STAT)
489 int total_commands;
490 int disconnections;
491 int busfree_without_any_action;
492 int busfree_without_old_command;
493 int busfree_without_new_command;
494 int busfree_without_done_command;
495 int busfree_with_check_condition;
496 int count[maxstate];
497 int count_trans[maxstate];
498 unsigned long time[maxstate];
499 #endif
500
501 int commands; /* current number of commands */
502
503 int reconnect; /* disconnection allowed */
504 int parity; /* parity checking enabled */
505 int synchronous; /* synchronous transferes enabled */
506 int delay; /* reset out delay */
507 int ext_trans; /* extended translation enabled */
508
509 int swint; /* software-interrupt was fired during detect() */
510 int service; /* bh needs to be run */
511 int in_intr; /* bh is running */
512
513 /* current state,
514 previous state,
515 last state different from current state */
516 enum aha152x_state state, prevstate, laststate;
517
518 int target;
519 /* reconnecting target */
520
521 unsigned char syncrate[8];
522 /* current synchronous transfer agreements */
523
524 unsigned char syncneg[8];
525 /* 0: no negotiation;
526 * 1: negotiation in progress;
527 * 2: negotiation completed
528 */
529
530 int cmd_i;
531 /* number of sent bytes of current command */
532
533 int msgi_len;
534 /* number of received message bytes */
535 unsigned char msgi[256];
536 /* received message bytes */
537
538 int msgo_i, msgo_len;
539 /* number of sent bytes and length of current messages */
540 unsigned char msgo[256];
541 /* pending messages */
542
543 int data_len;
544 /* number of sent/received bytes in dataphase */
545
546 unsigned long io_port0;
547 unsigned long io_port1;
548
549 #ifdef __ISAPNP__
550 struct pnp_dev *pnpdev;
551 #endif
552 struct list_head host_list;
553 };
554
555
556 /*
557 * host specific command extension
558 *
559 */
560 struct aha152x_scdata {
561 Scsi_Cmnd *next; /* next sc in queue */
562 struct completion *done;/* semaphore to block on */
563 struct scsi_eh_save ses;
564 };
565
566 /* access macros for hostdata */
567
568 #define HOSTDATA(shpnt) ((struct aha152x_hostdata *) &shpnt->hostdata)
569
570 #define HOSTNO ((shpnt)->host_no)
571
572 #define CURRENT_SC (HOSTDATA(shpnt)->current_SC)
573 #define DONE_SC (HOSTDATA(shpnt)->done_SC)
574 #define ISSUE_SC (HOSTDATA(shpnt)->issue_SC)
575 #define DISCONNECTED_SC (HOSTDATA(shpnt)->disconnected_SC)
576 #define QLOCK (HOSTDATA(shpnt)->lock)
577 #define QLOCKER (HOSTDATA(shpnt)->locker)
578 #define QLOCKERL (HOSTDATA(shpnt)->lockerl)
579
580 #define STATE (HOSTDATA(shpnt)->state)
581 #define PREVSTATE (HOSTDATA(shpnt)->prevstate)
582 #define LASTSTATE (HOSTDATA(shpnt)->laststate)
583
584 #define RECONN_TARGET (HOSTDATA(shpnt)->target)
585
586 #define CMD_I (HOSTDATA(shpnt)->cmd_i)
587
588 #define MSGO(i) (HOSTDATA(shpnt)->msgo[i])
589 #define MSGO_I (HOSTDATA(shpnt)->msgo_i)
590 #define MSGOLEN (HOSTDATA(shpnt)->msgo_len)
591 #define ADDMSGO(x) (MSGOLEN<256 ? (void)(MSGO(MSGOLEN++)=x) : aha152x_error(shpnt,"MSGO overflow"))
592
593 #define MSGI(i) (HOSTDATA(shpnt)->msgi[i])
594 #define MSGILEN (HOSTDATA(shpnt)->msgi_len)
595 #define ADDMSGI(x) (MSGILEN<256 ? (void)(MSGI(MSGILEN++)=x) : aha152x_error(shpnt,"MSGI overflow"))
596
597 #define DATA_LEN (HOSTDATA(shpnt)->data_len)
598
599 #define SYNCRATE (HOSTDATA(shpnt)->syncrate[CURRENT_SC->device->id])
600 #define SYNCNEG (HOSTDATA(shpnt)->syncneg[CURRENT_SC->device->id])
601
602 #define DELAY (HOSTDATA(shpnt)->delay)
603 #define EXT_TRANS (HOSTDATA(shpnt)->ext_trans)
604 #define TC1550 (HOSTDATA(shpnt)->tc1550)
605 #define RECONNECT (HOSTDATA(shpnt)->reconnect)
606 #define PARITY (HOSTDATA(shpnt)->parity)
607 #define SYNCHRONOUS (HOSTDATA(shpnt)->synchronous)
608
609 #define HOSTIOPORT0 (HOSTDATA(shpnt)->io_port0)
610 #define HOSTIOPORT1 (HOSTDATA(shpnt)->io_port1)
611
612 #define SCDATA(SCpnt) ((struct aha152x_scdata *) (SCpnt)->host_scribble)
613 #define SCNEXT(SCpnt) SCDATA(SCpnt)->next
614 #define SCSEM(SCpnt) SCDATA(SCpnt)->done
615
616 #define SG_ADDRESS(buffer) ((char *) sg_virt((buffer)))
617
618 /* state handling */
619 static void seldi_run(struct Scsi_Host *shpnt);
620 static void seldo_run(struct Scsi_Host *shpnt);
621 static void selto_run(struct Scsi_Host *shpnt);
622 static void busfree_run(struct Scsi_Host *shpnt);
623
624 static void msgo_init(struct Scsi_Host *shpnt);
625 static void msgo_run(struct Scsi_Host *shpnt);
626 static void msgo_end(struct Scsi_Host *shpnt);
627
628 static void cmd_init(struct Scsi_Host *shpnt);
629 static void cmd_run(struct Scsi_Host *shpnt);
630 static void cmd_end(struct Scsi_Host *shpnt);
631
632 static void datai_init(struct Scsi_Host *shpnt);
633 static void datai_run(struct Scsi_Host *shpnt);
634 static void datai_end(struct Scsi_Host *shpnt);
635
636 static void datao_init(struct Scsi_Host *shpnt);
637 static void datao_run(struct Scsi_Host *shpnt);
638 static void datao_end(struct Scsi_Host *shpnt);
639
640 static void status_run(struct Scsi_Host *shpnt);
641
642 static void msgi_run(struct Scsi_Host *shpnt);
643 static void msgi_end(struct Scsi_Host *shpnt);
644
645 static void parerr_run(struct Scsi_Host *shpnt);
646 static void rsti_run(struct Scsi_Host *shpnt);
647
648 static void is_complete(struct Scsi_Host *shpnt);
649
650 /*
651 * driver states
652 *
653 */
654 static struct {
655 char *name;
656 void (*init)(struct Scsi_Host *);
657 void (*run)(struct Scsi_Host *);
658 void (*end)(struct Scsi_Host *);
659 int spio;
660 } states[] = {
661 { "idle", NULL, NULL, NULL, 0},
662 { "unknown", NULL, NULL, NULL, 0},
663 { "seldo", NULL, seldo_run, NULL, 0},
664 { "seldi", NULL, seldi_run, NULL, 0},
665 { "selto", NULL, selto_run, NULL, 0},
666 { "busfree", NULL, busfree_run, NULL, 0},
667 { "msgo", msgo_init, msgo_run, msgo_end, 1},
668 { "cmd", cmd_init, cmd_run, cmd_end, 1},
669 { "msgi", NULL, msgi_run, msgi_end, 1},
670 { "status", NULL, status_run, NULL, 1},
671 { "datai", datai_init, datai_run, datai_end, 0},
672 { "datao", datao_init, datao_run, datao_end, 0},
673 { "parerr", NULL, parerr_run, NULL, 0},
674 { "rsti", NULL, rsti_run, NULL, 0},
675 };
676
677 /* setup & interrupt */
678 static irqreturn_t intr(int irq, void *dev_id);
679 static void reset_ports(struct Scsi_Host *shpnt);
680 static void aha152x_error(struct Scsi_Host *shpnt, char *msg);
681 static void done(struct Scsi_Host *shpnt, int error);
682
683 /* diagnostics */
684 static void disp_ports(struct Scsi_Host *shpnt);
685 static void show_command(Scsi_Cmnd * ptr);
686 static void show_queues(struct Scsi_Host *shpnt);
687 static void disp_enintr(struct Scsi_Host *shpnt);
688
689
690 /*
691 * queue services:
692 *
693 */
694 static inline void append_SC(Scsi_Cmnd **SC, Scsi_Cmnd *new_SC)
695 {
696 Scsi_Cmnd *end;
697
698 SCNEXT(new_SC) = NULL;
699 if (!*SC)
700 *SC = new_SC;
701 else {
702 for (end = *SC; SCNEXT(end); end = SCNEXT(end))
703 ;
704 SCNEXT(end) = new_SC;
705 }
706 }
707
708 static inline Scsi_Cmnd *remove_first_SC(Scsi_Cmnd ** SC)
709 {
710 Scsi_Cmnd *ptr;
711
712 ptr = *SC;
713 if (ptr) {
714 *SC = SCNEXT(*SC);
715 SCNEXT(ptr)=NULL;
716 }
717 return ptr;
718 }
719
720 static inline Scsi_Cmnd *remove_lun_SC(Scsi_Cmnd ** SC, int target, int lun)
721 {
722 Scsi_Cmnd *ptr, *prev;
723
724 for (ptr = *SC, prev = NULL;
725 ptr && ((ptr->device->id != target) || (ptr->device->lun != lun));
726 prev = ptr, ptr = SCNEXT(ptr))
727 ;
728
729 if (ptr) {
730 if (prev)
731 SCNEXT(prev) = SCNEXT(ptr);
732 else
733 *SC = SCNEXT(ptr);
734
735 SCNEXT(ptr)=NULL;
736 }
737
738 return ptr;
739 }
740
741 static inline Scsi_Cmnd *remove_SC(Scsi_Cmnd **SC, Scsi_Cmnd *SCp)
742 {
743 Scsi_Cmnd *ptr, *prev;
744
745 for (ptr = *SC, prev = NULL;
746 ptr && SCp!=ptr;
747 prev = ptr, ptr = SCNEXT(ptr))
748 ;
749
750 if (ptr) {
751 if (prev)
752 SCNEXT(prev) = SCNEXT(ptr);
753 else
754 *SC = SCNEXT(ptr);
755
756 SCNEXT(ptr)=NULL;
757 }
758
759 return ptr;
760 }
761
762 static irqreturn_t swintr(int irqno, void *dev_id)
763 {
764 struct Scsi_Host *shpnt = dev_id;
765
766 HOSTDATA(shpnt)->swint++;
767
768 SETPORT(DMACNTRL0, INTEN);
769 return IRQ_HANDLED;
770 }
771
772 struct Scsi_Host *aha152x_probe_one(struct aha152x_setup *setup)
773 {
774 struct Scsi_Host *shpnt;
775
776 shpnt = scsi_host_alloc(&aha152x_driver_template, sizeof(struct aha152x_hostdata));
777 if (!shpnt) {
778 printk(KERN_ERR "aha152x: scsi_host_alloc failed\n");
779 return NULL;
780 }
781
782 memset(HOSTDATA(shpnt), 0, sizeof *HOSTDATA(shpnt));
783 INIT_LIST_HEAD(&HOSTDATA(shpnt)->host_list);
784
785 /* need to have host registered before triggering any interrupt */
786 list_add_tail(&HOSTDATA(shpnt)->host_list, &aha152x_host_list);
787
788 shpnt->io_port = setup->io_port;
789 shpnt->n_io_port = IO_RANGE;
790 shpnt->irq = setup->irq;
791
792 if (!setup->tc1550) {
793 HOSTIOPORT0 = setup->io_port;
794 HOSTIOPORT1 = setup->io_port;
795 } else {
796 HOSTIOPORT0 = setup->io_port+0x10;
797 HOSTIOPORT1 = setup->io_port-0x10;
798 }
799
800 spin_lock_init(&QLOCK);
801 RECONNECT = setup->reconnect;
802 SYNCHRONOUS = setup->synchronous;
803 PARITY = setup->parity;
804 DELAY = setup->delay;
805 EXT_TRANS = setup->ext_trans;
806
807 #if defined(AHA152X_DEBUG)
808 HOSTDATA(shpnt)->debug = setup->debug;
809 #endif
810
811 SETPORT(SCSIID, setup->scsiid << 4);
812 shpnt->this_id = setup->scsiid;
813
814 if (setup->reconnect)
815 shpnt->can_queue = AHA152X_MAXQUEUE;
816
817 /* RESET OUT */
818 printk("aha152x: resetting bus...\n");
819 SETPORT(SCSISEQ, SCSIRSTO);
820 mdelay(256);
821 SETPORT(SCSISEQ, 0);
822 mdelay(DELAY);
823
824 reset_ports(shpnt);
825
826 printk(KERN_INFO
827 "aha152x%d%s: "
828 "vital data: rev=%x, "
829 "io=0x%03lx (0x%03lx/0x%03lx), "
830 "irq=%d, "
831 "scsiid=%d, "
832 "reconnect=%s, "
833 "parity=%s, "
834 "synchronous=%s, "
835 "delay=%d, "
836 "extended translation=%s\n",
837 shpnt->host_no, setup->tc1550 ? " (tc1550 mode)" : "",
838 GETPORT(REV) & 0x7,
839 shpnt->io_port, HOSTIOPORT0, HOSTIOPORT1,
840 shpnt->irq,
841 shpnt->this_id,
842 RECONNECT ? "enabled" : "disabled",
843 PARITY ? "enabled" : "disabled",
844 SYNCHRONOUS ? "enabled" : "disabled",
845 DELAY,
846 EXT_TRANS ? "enabled" : "disabled");
847
848 /* not expecting any interrupts */
849 SETPORT(SIMODE0, 0);
850 SETPORT(SIMODE1, 0);
851
852 if( request_irq(shpnt->irq, swintr, IRQF_DISABLED|IRQF_SHARED, "aha152x", shpnt) ) {
853 printk(KERN_ERR "aha152x%d: irq %d busy.\n", shpnt->host_no, shpnt->irq);
854 goto out_host_put;
855 }
856
857 HOSTDATA(shpnt)->swint = 0;
858
859 printk(KERN_INFO "aha152x%d: trying software interrupt, ", shpnt->host_no);
860
861 mb();
862 SETPORT(DMACNTRL0, SWINT|INTEN);
863 mdelay(1000);
864 free_irq(shpnt->irq, shpnt);
865
866 if (!HOSTDATA(shpnt)->swint) {
867 if (TESTHI(DMASTAT, INTSTAT)) {
868 printk("lost.\n");
869 } else {
870 printk("failed.\n");
871 }
872
873 SETPORT(DMACNTRL0, INTEN);
874
875 printk(KERN_ERR "aha152x%d: irq %d possibly wrong. "
876 "Please verify.\n", shpnt->host_no, shpnt->irq);
877 goto out_host_put;
878 }
879 printk("ok.\n");
880
881
882 /* clear interrupts */
883 SETPORT(SSTAT0, 0x7f);
884 SETPORT(SSTAT1, 0xef);
885
886 if ( request_irq(shpnt->irq, intr, IRQF_DISABLED|IRQF_SHARED, "aha152x", shpnt) ) {
887 printk(KERN_ERR "aha152x%d: failed to reassign irq %d.\n", shpnt->host_no, shpnt->irq);
888 goto out_host_put;
889 }
890
891 if( scsi_add_host(shpnt, NULL) ) {
892 free_irq(shpnt->irq, shpnt);
893 printk(KERN_ERR "aha152x%d: failed to add host.\n", shpnt->host_no);
894 goto out_host_put;
895 }
896
897 scsi_scan_host(shpnt);
898
899 return shpnt;
900
901 out_host_put:
902 list_del(&HOSTDATA(shpnt)->host_list);
903 scsi_host_put(shpnt);
904
905 return NULL;
906 }
907
908 void aha152x_release(struct Scsi_Host *shpnt)
909 {
910 if (!shpnt)
911 return;
912
913 scsi_remove_host(shpnt);
914 if (shpnt->irq)
915 free_irq(shpnt->irq, shpnt);
916
917 #if !defined(PCMCIA)
918 if (shpnt->io_port)
919 release_region(shpnt->io_port, IO_RANGE);
920 #endif
921
922 #ifdef __ISAPNP__
923 if (HOSTDATA(shpnt)->pnpdev)
924 pnp_device_detach(HOSTDATA(shpnt)->pnpdev);
925 #endif
926
927 list_del(&HOSTDATA(shpnt)->host_list);
928 scsi_host_put(shpnt);
929 }
930
931
932 /*
933 * setup controller to generate interrupts depending
934 * on current state (lock has to be acquired)
935 *
936 */
937 static int setup_expected_interrupts(struct Scsi_Host *shpnt)
938 {
939 if(CURRENT_SC) {
940 CURRENT_SC->SCp.phase |= 1 << 16;
941
942 if(CURRENT_SC->SCp.phase & selecting) {
943 DPRINTK(debug_intr, DEBUG_LEAD "expecting: (seldo) (seltimo) (seldi)\n", CMDINFO(CURRENT_SC));
944 SETPORT(SSTAT1, SELTO);
945 SETPORT(SIMODE0, ENSELDO | (DISCONNECTED_SC ? ENSELDI : 0));
946 SETPORT(SIMODE1, ENSELTIMO);
947 } else {
948 DPRINTK(debug_intr, DEBUG_LEAD "expecting: (phase change) (busfree) %s\n", CMDINFO(CURRENT_SC), CURRENT_SC->SCp.phase & spiordy ? "(spiordy)" : "");
949 SETPORT(SIMODE0, (CURRENT_SC->SCp.phase & spiordy) ? ENSPIORDY : 0);
950 SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE);
951 }
952 } else if(STATE==seldi) {
953 DPRINTK(debug_intr, DEBUG_LEAD "expecting: (phase change) (identify)\n", CMDINFO(CURRENT_SC));
954 SETPORT(SIMODE0, 0);
955 SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE);
956 } else {
957 DPRINTK(debug_intr, DEBUG_LEAD "expecting: %s %s\n",
958 CMDINFO(CURRENT_SC),
959 DISCONNECTED_SC ? "(reselection)" : "",
960 ISSUE_SC ? "(busfree)" : "");
961 SETPORT(SIMODE0, DISCONNECTED_SC ? ENSELDI : 0);
962 SETPORT(SIMODE1, ENSCSIRST | ( (ISSUE_SC||DONE_SC) ? ENBUSFREE : 0));
963 }
964
965 if(!HOSTDATA(shpnt)->in_intr)
966 SETBITS(DMACNTRL0, INTEN);
967
968 return TESTHI(DMASTAT, INTSTAT);
969 }
970
971
972 /*
973 * Queue a command and setup interrupts for a free bus.
974 */
975 static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct completion *complete,
976 int phase, void (*done)(Scsi_Cmnd *))
977 {
978 struct Scsi_Host *shpnt = SCpnt->device->host;
979 unsigned long flags;
980
981 #if defined(AHA152X_DEBUG)
982 if (HOSTDATA(shpnt)->debug & debug_queue) {
983 printk(INFO_LEAD "queue: %p; cmd_len=%d pieces=%d size=%u cmnd=",
984 CMDINFO(SCpnt), SCpnt, SCpnt->cmd_len,
985 scsi_sg_count(SCpnt), scsi_bufflen(SCpnt));
986 __scsi_print_command(SCpnt->cmnd);
987 }
988 #endif
989
990 SCpnt->scsi_done = done;
991 SCpnt->SCp.phase = not_issued | phase;
992 SCpnt->SCp.Status = 0x1; /* Ilegal status by SCSI standard */
993 SCpnt->SCp.Message = 0;
994 SCpnt->SCp.have_data_in = 0;
995 SCpnt->SCp.sent_command = 0;
996
997 if(SCpnt->SCp.phase & (resetting|check_condition)) {
998 if (!SCpnt->host_scribble || SCSEM(SCpnt) || SCNEXT(SCpnt)) {
999 printk(ERR_LEAD "cannot reuse command\n", CMDINFO(SCpnt));
1000 return FAILED;
1001 }
1002 } else {
1003 SCpnt->host_scribble = kmalloc(sizeof(struct aha152x_scdata), GFP_ATOMIC);
1004 if(!SCpnt->host_scribble) {
1005 printk(ERR_LEAD "allocation failed\n", CMDINFO(SCpnt));
1006 return FAILED;
1007 }
1008 }
1009
1010 SCNEXT(SCpnt) = NULL;
1011 SCSEM(SCpnt) = complete;
1012
1013 /* setup scratch area
1014 SCp.ptr : buffer pointer
1015 SCp.this_residual : buffer length
1016 SCp.buffer : next buffer
1017 SCp.buffers_residual : left buffers in list
1018 SCp.phase : current state of the command */
1019
1020 if ((phase & resetting) || !scsi_sglist(SCpnt)) {
1021 SCpnt->SCp.ptr = NULL;
1022 SCpnt->SCp.this_residual = 0;
1023 scsi_set_resid(SCpnt, 0);
1024 SCpnt->SCp.buffer = NULL;
1025 SCpnt->SCp.buffers_residual = 0;
1026 } else {
1027 scsi_set_resid(SCpnt, scsi_bufflen(SCpnt));
1028 SCpnt->SCp.buffer = scsi_sglist(SCpnt);
1029 SCpnt->SCp.ptr = SG_ADDRESS(SCpnt->SCp.buffer);
1030 SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length;
1031 SCpnt->SCp.buffers_residual = scsi_sg_count(SCpnt) - 1;
1032 }
1033
1034 DO_LOCK(flags);
1035
1036 #if defined(AHA152X_STAT)
1037 HOSTDATA(shpnt)->total_commands++;
1038 #endif
1039
1040 /* Turn led on, when this is the first command. */
1041 HOSTDATA(shpnt)->commands++;
1042 if (HOSTDATA(shpnt)->commands==1)
1043 SETPORT(PORTA, 1);
1044
1045 append_SC(&ISSUE_SC, SCpnt);
1046
1047 if(!HOSTDATA(shpnt)->in_intr)
1048 setup_expected_interrupts(shpnt);
1049
1050 DO_UNLOCK(flags);
1051
1052 return 0;
1053 }
1054
1055 /*
1056 * queue a command
1057 *
1058 */
1059 static int aha152x_queue_lck(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
1060 {
1061 #if 0
1062 if(*SCpnt->cmnd == REQUEST_SENSE) {
1063 SCpnt->result = 0;
1064 done(SCpnt);
1065
1066 return 0;
1067 }
1068 #endif
1069
1070 return aha152x_internal_queue(SCpnt, NULL, 0, done);
1071 }
1072
1073 static DEF_SCSI_QCMD(aha152x_queue)
1074
1075
1076 /*
1077 *
1078 *
1079 */
1080 static void reset_done(Scsi_Cmnd *SCpnt)
1081 {
1082 #if 0
1083 struct Scsi_Host *shpnt = SCpnt->host;
1084 DPRINTK(debug_eh, INFO_LEAD "reset_done called\n", CMDINFO(SCpnt));
1085 #endif
1086 if(SCSEM(SCpnt)) {
1087 complete(SCSEM(SCpnt));
1088 } else {
1089 printk(KERN_ERR "aha152x: reset_done w/o completion\n");
1090 }
1091 }
1092
1093 /*
1094 * Abort a command
1095 *
1096 */
1097 static int aha152x_abort(Scsi_Cmnd *SCpnt)
1098 {
1099 struct Scsi_Host *shpnt = SCpnt->device->host;
1100 Scsi_Cmnd *ptr;
1101 unsigned long flags;
1102
1103 #if defined(AHA152X_DEBUG)
1104 if(HOSTDATA(shpnt)->debug & debug_eh) {
1105 printk(DEBUG_LEAD "abort(%p)", CMDINFO(SCpnt), SCpnt);
1106 show_queues(shpnt);
1107 }
1108 #endif
1109
1110 DO_LOCK(flags);
1111
1112 ptr=remove_SC(&ISSUE_SC, SCpnt);
1113
1114 if(ptr) {
1115 DPRINTK(debug_eh, DEBUG_LEAD "not yet issued - SUCCESS\n", CMDINFO(SCpnt));
1116
1117 HOSTDATA(shpnt)->commands--;
1118 if (!HOSTDATA(shpnt)->commands)
1119 SETPORT(PORTA, 0);
1120 DO_UNLOCK(flags);
1121
1122 kfree(SCpnt->host_scribble);
1123 SCpnt->host_scribble=NULL;
1124
1125 return SUCCESS;
1126 }
1127
1128 DO_UNLOCK(flags);
1129
1130 /*
1131 * FIXME:
1132 * for current command: queue ABORT for message out and raise ATN
1133 * for disconnected command: pseudo SC with ABORT message or ABORT on reselection?
1134 *
1135 */
1136
1137 printk(ERR_LEAD "cannot abort running or disconnected command\n", CMDINFO(SCpnt));
1138
1139 return FAILED;
1140 }
1141
1142 /*
1143 * Reset a device
1144 *
1145 */
1146 static int aha152x_device_reset(Scsi_Cmnd * SCpnt)
1147 {
1148 struct Scsi_Host *shpnt = SCpnt->device->host;
1149 DECLARE_COMPLETION(done);
1150 int ret, issued, disconnected;
1151 unsigned char old_cmd_len = SCpnt->cmd_len;
1152 unsigned long flags;
1153 unsigned long timeleft;
1154
1155 #if defined(AHA152X_DEBUG)
1156 if(HOSTDATA(shpnt)->debug & debug_eh) {
1157 printk(INFO_LEAD "aha152x_device_reset(%p)", CMDINFO(SCpnt), SCpnt);
1158 show_queues(shpnt);
1159 }
1160 #endif
1161
1162 if(CURRENT_SC==SCpnt) {
1163 printk(ERR_LEAD "cannot reset current device\n", CMDINFO(SCpnt));
1164 return FAILED;
1165 }
1166
1167 DO_LOCK(flags);
1168 issued = remove_SC(&ISSUE_SC, SCpnt) == NULL;
1169 disconnected = issued && remove_SC(&DISCONNECTED_SC, SCpnt);
1170 DO_UNLOCK(flags);
1171
1172 SCpnt->cmd_len = 0;
1173
1174 aha152x_internal_queue(SCpnt, &done, resetting, reset_done);
1175
1176 timeleft = wait_for_completion_timeout(&done, 100*HZ);
1177 if (!timeleft) {
1178 /* remove command from issue queue */
1179 DO_LOCK(flags);
1180 remove_SC(&ISSUE_SC, SCpnt);
1181 DO_UNLOCK(flags);
1182 }
1183
1184 SCpnt->cmd_len = old_cmd_len;
1185
1186 DO_LOCK(flags);
1187
1188 if(SCpnt->SCp.phase & resetted) {
1189 HOSTDATA(shpnt)->commands--;
1190 if (!HOSTDATA(shpnt)->commands)
1191 SETPORT(PORTA, 0);
1192 kfree(SCpnt->host_scribble);
1193 SCpnt->host_scribble=NULL;
1194
1195 ret = SUCCESS;
1196 } else {
1197 /* requeue */
1198 if(!issued) {
1199 append_SC(&ISSUE_SC, SCpnt);
1200 } else if(disconnected) {
1201 append_SC(&DISCONNECTED_SC, SCpnt);
1202 }
1203
1204 ret = FAILED;
1205 }
1206
1207 DO_UNLOCK(flags);
1208 return ret;
1209 }
1210
1211 static void free_hard_reset_SCs(struct Scsi_Host *shpnt, Scsi_Cmnd **SCs)
1212 {
1213 Scsi_Cmnd *ptr;
1214
1215 ptr=*SCs;
1216 while(ptr) {
1217 Scsi_Cmnd *next;
1218
1219 if(SCDATA(ptr)) {
1220 next = SCNEXT(ptr);
1221 } else {
1222 printk(DEBUG_LEAD "queue corrupted at %p\n", CMDINFO(ptr), ptr);
1223 next = NULL;
1224 }
1225
1226 if (!ptr->device->soft_reset) {
1227 DPRINTK(debug_eh, DEBUG_LEAD "disconnected command %p removed\n", CMDINFO(ptr), ptr);
1228 remove_SC(SCs, ptr);
1229 HOSTDATA(shpnt)->commands--;
1230 kfree(ptr->host_scribble);
1231 ptr->host_scribble=NULL;
1232 }
1233
1234 ptr = next;
1235 }
1236 }
1237
1238 /*
1239 * Reset the bus
1240 *
1241 */
1242 static int aha152x_bus_reset_host(struct Scsi_Host *shpnt)
1243 {
1244 unsigned long flags;
1245
1246 DO_LOCK(flags);
1247
1248 #if defined(AHA152X_DEBUG)
1249 if(HOSTDATA(shpnt)->debug & debug_eh) {
1250 printk(KERN_DEBUG "scsi%d: bus reset", shpnt->host_no);
1251 show_queues(shpnt);
1252 }
1253 #endif
1254
1255 free_hard_reset_SCs(shpnt, &ISSUE_SC);
1256 free_hard_reset_SCs(shpnt, &DISCONNECTED_SC);
1257
1258 DPRINTK(debug_eh, KERN_DEBUG "scsi%d: resetting bus\n", shpnt->host_no);
1259
1260 SETPORT(SCSISEQ, SCSIRSTO);
1261 mdelay(256);
1262 SETPORT(SCSISEQ, 0);
1263 mdelay(DELAY);
1264
1265 DPRINTK(debug_eh, KERN_DEBUG "scsi%d: bus resetted\n", shpnt->host_no);
1266
1267 setup_expected_interrupts(shpnt);
1268 if(HOSTDATA(shpnt)->commands==0)
1269 SETPORT(PORTA, 0);
1270
1271 DO_UNLOCK(flags);
1272
1273 return SUCCESS;
1274 }
1275
1276 /*
1277 * Reset the bus
1278 *
1279 */
1280 static int aha152x_bus_reset(Scsi_Cmnd *SCpnt)
1281 {
1282 return aha152x_bus_reset_host(SCpnt->device->host);
1283 }
1284
1285 /*
1286 * Restore default values to the AIC-6260 registers and reset the fifos
1287 *
1288 */
1289 static void reset_ports(struct Scsi_Host *shpnt)
1290 {
1291 unsigned long flags;
1292
1293 /* disable interrupts */
1294 SETPORT(DMACNTRL0, RSTFIFO);
1295
1296 SETPORT(SCSISEQ, 0);
1297
1298 SETPORT(SXFRCTL1, 0);
1299 SETPORT(SCSISIG, 0);
1300 SETRATE(0);
1301
1302 /* clear all interrupt conditions */
1303 SETPORT(SSTAT0, 0x7f);
1304 SETPORT(SSTAT1, 0xef);
1305
1306 SETPORT(SSTAT4, SYNCERR | FWERR | FRERR);
1307
1308 SETPORT(DMACNTRL0, 0);
1309 SETPORT(DMACNTRL1, 0);
1310
1311 SETPORT(BRSTCNTRL, 0xf1);
1312
1313 /* clear SCSI fifos and transfer count */
1314 SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT);
1315 SETPORT(SXFRCTL0, CH1);
1316
1317 DO_LOCK(flags);
1318 setup_expected_interrupts(shpnt);
1319 DO_UNLOCK(flags);
1320 }
1321
1322 /*
1323 * Reset the host (bus and controller)
1324 *
1325 */
1326 int aha152x_host_reset_host(struct Scsi_Host *shpnt)
1327 {
1328 DPRINTK(debug_eh, KERN_DEBUG "scsi%d: host reset\n", shpnt->host_no);
1329
1330 aha152x_bus_reset_host(shpnt);
1331
1332 DPRINTK(debug_eh, KERN_DEBUG "scsi%d: resetting ports\n", shpnt->host_no);
1333 reset_ports(shpnt);
1334
1335 return SUCCESS;
1336 }
1337
1338 /*
1339 * Reset the host (bus and controller)
1340 *
1341 */
1342 static int aha152x_host_reset(Scsi_Cmnd *SCpnt)
1343 {
1344 return aha152x_host_reset_host(SCpnt->device->host);
1345 }
1346
1347 /*
1348 * Return the "logical geometry"
1349 *
1350 */
1351 static int aha152x_biosparam(struct scsi_device *sdev, struct block_device *bdev,
1352 sector_t capacity, int *info_array)
1353 {
1354 struct Scsi_Host *shpnt = sdev->host;
1355
1356 /* try default translation */
1357 info_array[0] = 64;
1358 info_array[1] = 32;
1359 info_array[2] = (unsigned long)capacity / (64 * 32);
1360
1361 /* for disks >1GB do some guessing */
1362 if (info_array[2] >= 1024) {
1363 int info[3];
1364
1365 /* try to figure out the geometry from the partition table */
1366 if (scsicam_bios_param(bdev, capacity, info) < 0 ||
1367 !((info[0] == 64 && info[1] == 32) || (info[0] == 255 && info[1] == 63))) {
1368 if (EXT_TRANS) {
1369 printk(KERN_NOTICE
1370 "aha152x: unable to verify geometry for disk with >1GB.\n"
1371 " using extended translation.\n");
1372 info_array[0] = 255;
1373 info_array[1] = 63;
1374 info_array[2] = (unsigned long)capacity / (255 * 63);
1375 } else {
1376 printk(KERN_NOTICE
1377 "aha152x: unable to verify geometry for disk with >1GB.\n"
1378 " Using default translation. Please verify yourself.\n"
1379 " Perhaps you need to enable extended translation in the driver.\n"
1380 " See Documentation/scsi/aha152x.txt for details.\n");
1381 }
1382 } else {
1383 info_array[0] = info[0];
1384 info_array[1] = info[1];
1385 info_array[2] = info[2];
1386
1387 if (info[0] == 255 && !EXT_TRANS) {
1388 printk(KERN_NOTICE
1389 "aha152x: current partition table is using extended translation.\n"
1390 " using it also, although it's not explicitly enabled.\n");
1391 }
1392 }
1393 }
1394
1395 return 0;
1396 }
1397
1398 /*
1399 * Internal done function
1400 *
1401 */
1402 static void done(struct Scsi_Host *shpnt, int error)
1403 {
1404 if (CURRENT_SC) {
1405 if(DONE_SC)
1406 printk(ERR_LEAD "there's already a completed command %p - will cause abort\n", CMDINFO(CURRENT_SC), DONE_SC);
1407
1408 DONE_SC = CURRENT_SC;
1409 CURRENT_SC = NULL;
1410 DONE_SC->result = error;
1411 } else
1412 printk(KERN_ERR "aha152x: done() called outside of command\n");
1413 }
1414
1415 static struct work_struct aha152x_tq;
1416
1417 /*
1418 * Run service completions on the card with interrupts enabled.
1419 *
1420 */
1421 static void run(struct work_struct *work)
1422 {
1423 struct aha152x_hostdata *hd;
1424
1425 list_for_each_entry(hd, &aha152x_host_list, host_list) {
1426 struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata);
1427
1428 is_complete(shost);
1429 }
1430 }
1431
1432 /*
1433 * Interrupt handler
1434 *
1435 */
1436 static irqreturn_t intr(int irqno, void *dev_id)
1437 {
1438 struct Scsi_Host *shpnt = dev_id;
1439 unsigned long flags;
1440 unsigned char rev, dmacntrl0;
1441
1442 /*
1443 * Read a couple of registers that are known to not be all 1's. If
1444 * we read all 1's (-1), that means that either:
1445 *
1446 * a. The host adapter chip has gone bad, and we cannot control it,
1447 * OR
1448 * b. The host adapter is a PCMCIA card that has been ejected
1449 *
1450 * In either case, we cannot do anything with the host adapter at
1451 * this point in time. So just ignore the interrupt and return.
1452 * In the latter case, the interrupt might actually be meant for
1453 * someone else sharing this IRQ, and that driver will handle it.
1454 */
1455 rev = GETPORT(REV);
1456 dmacntrl0 = GETPORT(DMACNTRL0);
1457 if ((rev == 0xFF) && (dmacntrl0 == 0xFF))
1458 return IRQ_NONE;
1459
1460 if( TESTLO(DMASTAT, INTSTAT) )
1461 return IRQ_NONE;
1462
1463 /* no more interrupts from the controller, while we're busy.
1464 INTEN is restored by the BH handler */
1465 CLRBITS(DMACNTRL0, INTEN);
1466
1467 DO_LOCK(flags);
1468 if( HOSTDATA(shpnt)->service==0 ) {
1469 HOSTDATA(shpnt)->service=1;
1470
1471 /* Poke the BH handler */
1472 INIT_WORK(&aha152x_tq, run);
1473 schedule_work(&aha152x_tq);
1474 }
1475 DO_UNLOCK(flags);
1476
1477 return IRQ_HANDLED;
1478 }
1479
1480 /*
1481 * busfree phase
1482 * - handle completition/disconnection/error of current command
1483 * - start selection for next command (if any)
1484 */
1485 static void busfree_run(struct Scsi_Host *shpnt)
1486 {
1487 unsigned long flags;
1488 #if defined(AHA152X_STAT)
1489 int action=0;
1490 #endif
1491
1492 SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT);
1493 SETPORT(SXFRCTL0, CH1);
1494
1495 SETPORT(SSTAT1, CLRBUSFREE);
1496
1497 if(CURRENT_SC) {
1498 #if defined(AHA152X_STAT)
1499 action++;
1500 #endif
1501 CURRENT_SC->SCp.phase &= ~syncneg;
1502
1503 if(CURRENT_SC->SCp.phase & completed) {
1504 /* target sent COMMAND COMPLETE */
1505 done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_OK << 16));
1506
1507 } else if(CURRENT_SC->SCp.phase & aborted) {
1508 DPRINTK(debug_eh, DEBUG_LEAD "ABORT sent\n", CMDINFO(CURRENT_SC));
1509 done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_ABORT << 16));
1510
1511 } else if(CURRENT_SC->SCp.phase & resetted) {
1512 DPRINTK(debug_eh, DEBUG_LEAD "BUS DEVICE RESET sent\n", CMDINFO(CURRENT_SC));
1513 done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_RESET << 16));
1514
1515 } else if(CURRENT_SC->SCp.phase & disconnected) {
1516 /* target sent DISCONNECT */
1517 DPRINTK(debug_selection, DEBUG_LEAD "target disconnected at %d/%d\n",
1518 CMDINFO(CURRENT_SC),
1519 scsi_get_resid(CURRENT_SC),
1520 scsi_bufflen(CURRENT_SC));
1521 #if defined(AHA152X_STAT)
1522 HOSTDATA(shpnt)->disconnections++;
1523 #endif
1524 append_SC(&DISCONNECTED_SC, CURRENT_SC);
1525 CURRENT_SC->SCp.phase |= 1 << 16;
1526 CURRENT_SC = NULL;
1527
1528 } else {
1529 done(shpnt, DID_ERROR << 16);
1530 }
1531 #if defined(AHA152X_STAT)
1532 } else {
1533 HOSTDATA(shpnt)->busfree_without_old_command++;
1534 #endif
1535 }
1536
1537 DO_LOCK(flags);
1538
1539 if(DONE_SC) {
1540 #if defined(AHA152X_STAT)
1541 action++;
1542 #endif
1543
1544 if(DONE_SC->SCp.phase & check_condition) {
1545 struct scsi_cmnd *cmd = HOSTDATA(shpnt)->done_SC;
1546 struct aha152x_scdata *sc = SCDATA(cmd);
1547
1548 #if 0
1549 if(HOSTDATA(shpnt)->debug & debug_eh) {
1550 printk(ERR_LEAD "received sense: ", CMDINFO(DONE_SC));
1551 scsi_print_sense("bh", DONE_SC);
1552 }
1553 #endif
1554
1555 scsi_eh_restore_cmnd(cmd, &sc->ses);
1556
1557 cmd->SCp.Status = SAM_STAT_CHECK_CONDITION;
1558
1559 HOSTDATA(shpnt)->commands--;
1560 if (!HOSTDATA(shpnt)->commands)
1561 SETPORT(PORTA, 0); /* turn led off */
1562 } else if(DONE_SC->SCp.Status==SAM_STAT_CHECK_CONDITION) {
1563 #if defined(AHA152X_STAT)
1564 HOSTDATA(shpnt)->busfree_with_check_condition++;
1565 #endif
1566 #if 0
1567 DPRINTK(debug_eh, ERR_LEAD "CHECK CONDITION found\n", CMDINFO(DONE_SC));
1568 #endif
1569
1570 if(!(DONE_SC->SCp.phase & not_issued)) {
1571 struct aha152x_scdata *sc;
1572 Scsi_Cmnd *ptr = DONE_SC;
1573 DONE_SC=NULL;
1574 #if 0
1575 DPRINTK(debug_eh, ERR_LEAD "requesting sense\n", CMDINFO(ptr));
1576 #endif
1577
1578 sc = SCDATA(ptr);
1579 /* It was allocated in aha152x_internal_queue? */
1580 BUG_ON(!sc);
1581 scsi_eh_prep_cmnd(ptr, &sc->ses, NULL, 0, ~0);
1582
1583 DO_UNLOCK(flags);
1584 aha152x_internal_queue(ptr, NULL, check_condition, ptr->scsi_done);
1585 DO_LOCK(flags);
1586 #if 0
1587 } else {
1588 DPRINTK(debug_eh, ERR_LEAD "command not issued - CHECK CONDITION ignored\n", CMDINFO(DONE_SC));
1589 #endif
1590 }
1591 }
1592
1593 if(DONE_SC && DONE_SC->scsi_done) {
1594 #if defined(AHA152X_DEBUG)
1595 int hostno=DONE_SC->device->host->host_no;
1596 int id=DONE_SC->device->id & 0xf;
1597 int lun=DONE_SC->device->lun & 0x7;
1598 #endif
1599 Scsi_Cmnd *ptr = DONE_SC;
1600 DONE_SC=NULL;
1601
1602 /* turn led off, when no commands are in the driver */
1603 HOSTDATA(shpnt)->commands--;
1604 if (!HOSTDATA(shpnt)->commands)
1605 SETPORT(PORTA, 0); /* turn led off */
1606
1607 if(ptr->scsi_done != reset_done) {
1608 kfree(ptr->host_scribble);
1609 ptr->host_scribble=NULL;
1610 }
1611
1612 DO_UNLOCK(flags);
1613 DPRINTK(debug_done, DEBUG_LEAD "calling scsi_done(%p)\n", hostno, id, lun, ptr);
1614 ptr->scsi_done(ptr);
1615 DPRINTK(debug_done, DEBUG_LEAD "scsi_done(%p) returned\n", hostno, id, lun, ptr);
1616 DO_LOCK(flags);
1617 }
1618
1619 DONE_SC=NULL;
1620 #if defined(AHA152X_STAT)
1621 } else {
1622 HOSTDATA(shpnt)->busfree_without_done_command++;
1623 #endif
1624 }
1625
1626 if(ISSUE_SC)
1627 CURRENT_SC = remove_first_SC(&ISSUE_SC);
1628
1629 DO_UNLOCK(flags);
1630
1631 if(CURRENT_SC) {
1632 #if defined(AHA152X_STAT)
1633 action++;
1634 #endif
1635 CURRENT_SC->SCp.phase |= selecting;
1636
1637 DPRINTK(debug_selection, DEBUG_LEAD "selecting target\n", CMDINFO(CURRENT_SC));
1638
1639 /* clear selection timeout */
1640 SETPORT(SSTAT1, SELTO);
1641
1642 SETPORT(SCSIID, (shpnt->this_id << OID_) | CURRENT_SC->device->id);
1643 SETPORT(SXFRCTL1, (PARITY ? ENSPCHK : 0 ) | ENSTIMER);
1644 SETPORT(SCSISEQ, ENSELO | ENAUTOATNO | (DISCONNECTED_SC ? ENRESELI : 0));
1645 } else {
1646 #if defined(AHA152X_STAT)
1647 HOSTDATA(shpnt)->busfree_without_new_command++;
1648 #endif
1649 SETPORT(SCSISEQ, DISCONNECTED_SC ? ENRESELI : 0);
1650 }
1651
1652 #if defined(AHA152X_STAT)
1653 if(!action)
1654 HOSTDATA(shpnt)->busfree_without_any_action++;
1655 #endif
1656 }
1657
1658 /*
1659 * Selection done (OUT)
1660 * - queue IDENTIFY message and SDTR to selected target for message out
1661 * (ATN asserted automagically via ENAUTOATNO in busfree())
1662 */
1663 static void seldo_run(struct Scsi_Host *shpnt)
1664 {
1665 SETPORT(SCSISIG, 0);
1666 SETPORT(SSTAT1, CLRBUSFREE);
1667 SETPORT(SSTAT1, CLRPHASECHG);
1668
1669 CURRENT_SC->SCp.phase &= ~(selecting|not_issued);
1670
1671 SETPORT(SCSISEQ, 0);
1672
1673 if (TESTLO(SSTAT0, SELDO)) {
1674 printk(ERR_LEAD "aha152x: passing bus free condition\n", CMDINFO(CURRENT_SC));
1675 done(shpnt, DID_NO_CONNECT << 16);
1676 return;
1677 }
1678
1679 SETPORT(SSTAT0, CLRSELDO);
1680
1681 ADDMSGO(IDENTIFY(RECONNECT, CURRENT_SC->device->lun));
1682
1683 if (CURRENT_SC->SCp.phase & aborting) {
1684 ADDMSGO(ABORT);
1685 } else if (CURRENT_SC->SCp.phase & resetting) {
1686 ADDMSGO(BUS_DEVICE_RESET);
1687 } else if (SYNCNEG==0 && SYNCHRONOUS) {
1688 CURRENT_SC->SCp.phase |= syncneg;
1689 MSGOLEN += spi_populate_sync_msg(&MSGO(MSGOLEN), 50, 8);
1690 SYNCNEG=1; /* negotiation in progress */
1691 }
1692
1693 SETRATE(SYNCRATE);
1694 }
1695
1696 /*
1697 * Selection timeout
1698 * - return command to mid-level with failure cause
1699 *
1700 */
1701 static void selto_run(struct Scsi_Host *shpnt)
1702 {
1703 SETPORT(SCSISEQ, 0);
1704 SETPORT(SSTAT1, CLRSELTIMO);
1705
1706 DPRINTK(debug_selection, DEBUG_LEAD "selection timeout\n", CMDINFO(CURRENT_SC));
1707
1708 if(!CURRENT_SC) {
1709 DPRINTK(debug_selection, DEBUG_LEAD "!CURRENT_SC\n", CMDINFO(CURRENT_SC));
1710 return;
1711 }
1712
1713 CURRENT_SC->SCp.phase &= ~selecting;
1714
1715 if (CURRENT_SC->SCp.phase & aborted) {
1716 DPRINTK(debug_selection, DEBUG_LEAD "aborted\n", CMDINFO(CURRENT_SC));
1717 done(shpnt, DID_ABORT << 16);
1718 } else if (TESTLO(SSTAT0, SELINGO)) {
1719 DPRINTK(debug_selection, DEBUG_LEAD "arbitration not won\n", CMDINFO(CURRENT_SC));
1720 done(shpnt, DID_BUS_BUSY << 16);
1721 } else {
1722 /* ARBITRATION won, but SELECTION failed */
1723 DPRINTK(debug_selection, DEBUG_LEAD "selection failed\n", CMDINFO(CURRENT_SC));
1724 done(shpnt, DID_NO_CONNECT << 16);
1725 }
1726 }
1727
1728 /*
1729 * Selection in done
1730 * - put current command back to issue queue
1731 * (reconnection of a disconnected nexus instead
1732 * of successful selection out)
1733 *
1734 */
1735 static void seldi_run(struct Scsi_Host *shpnt)
1736 {
1737 int selid;
1738 int target;
1739 unsigned long flags;
1740
1741 SETPORT(SCSISIG, 0);
1742 SETPORT(SSTAT0, CLRSELDI);
1743 SETPORT(SSTAT1, CLRBUSFREE);
1744 SETPORT(SSTAT1, CLRPHASECHG);
1745
1746 if(CURRENT_SC) {
1747 if(!(CURRENT_SC->SCp.phase & not_issued))
1748 printk(ERR_LEAD "command should not have been issued yet\n", CMDINFO(CURRENT_SC));
1749
1750 DPRINTK(debug_selection, ERR_LEAD "command requeued - reselection\n", CMDINFO(CURRENT_SC));
1751
1752 DO_LOCK(flags);
1753 append_SC(&ISSUE_SC, CURRENT_SC);
1754 DO_UNLOCK(flags);
1755
1756 CURRENT_SC = NULL;
1757 }
1758
1759 if(!DISCONNECTED_SC) {
1760 DPRINTK(debug_selection, DEBUG_LEAD "unexpected SELDI ", CMDINFO(CURRENT_SC));
1761 return;
1762 }
1763
1764 RECONN_TARGET=-1;
1765
1766 selid = GETPORT(SELID) & ~(1 << shpnt->this_id);
1767
1768 if (selid==0) {
1769 printk("aha152x%d: target id unknown (%02x)\n", HOSTNO, selid);
1770 return;
1771 }
1772
1773 for(target=7; !(selid & (1 << target)); target--)
1774 ;
1775
1776 if(selid & ~(1 << target)) {
1777 printk("aha152x%d: multiple targets reconnected (%02x)\n",
1778 HOSTNO, selid);
1779 }
1780
1781
1782 SETPORT(SCSIID, (shpnt->this_id << OID_) | target);
1783 SETPORT(SCSISEQ, 0);
1784
1785 SETRATE(HOSTDATA(shpnt)->syncrate[target]);
1786
1787 RECONN_TARGET=target;
1788 DPRINTK(debug_selection, DEBUG_LEAD "target %d reselected (%02x).\n", CMDINFO(CURRENT_SC), target, selid);
1789 }
1790
1791 /*
1792 * message in phase
1793 * - handle initial message after reconnection to identify
1794 * reconnecting nexus
1795 * - queue command on DISCONNECTED_SC on DISCONNECT message
1796 * - set completed flag on COMMAND COMPLETE
1797 * (other completition code moved to busfree_run)
1798 * - handle response to SDTR
1799 * - clear synchronous transfer agreements on BUS RESET
1800 *
1801 * FIXME: what about SAVE POINTERS, RESTORE POINTERS?
1802 *
1803 */
1804 static void msgi_run(struct Scsi_Host *shpnt)
1805 {
1806 for(;;) {
1807 int sstat1 = GETPORT(SSTAT1);
1808
1809 if(sstat1 & (PHASECHG|PHASEMIS|BUSFREE) || !(sstat1 & REQINIT))
1810 return;
1811
1812 if(TESTLO(SSTAT0,SPIORDY)) {
1813 DPRINTK(debug_msgi, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
1814 return;
1815 }
1816
1817 ADDMSGI(GETPORT(SCSIDAT));
1818
1819 #if defined(AHA152X_DEBUG)
1820 if (HOSTDATA(shpnt)->debug & debug_msgi) {
1821 printk(INFO_LEAD "inbound message %02x ", CMDINFO(CURRENT_SC), MSGI(0));
1822 spi_print_msg(&MSGI(0));
1823 printk("\n");
1824 }
1825 #endif
1826
1827 if(!CURRENT_SC) {
1828 if(LASTSTATE!=seldi) {
1829 printk(KERN_ERR "aha152x%d: message in w/o current command not after reselection\n", HOSTNO);
1830 }
1831
1832 /*
1833 * Handle reselection
1834 */
1835 if(!(MSGI(0) & IDENTIFY_BASE)) {
1836 printk(KERN_ERR "aha152x%d: target didn't identify after reselection\n", HOSTNO);
1837 continue;
1838 }
1839
1840 CURRENT_SC = remove_lun_SC(&DISCONNECTED_SC, RECONN_TARGET, MSGI(0) & 0x3f);
1841
1842 if (!CURRENT_SC) {
1843 show_queues(shpnt);
1844 printk(KERN_ERR "aha152x%d: no disconnected command for target %d/%d\n", HOSTNO, RECONN_TARGET, MSGI(0) & 0x3f);
1845 continue;
1846 }
1847
1848 DPRINTK(debug_msgi, DEBUG_LEAD "target reconnected\n", CMDINFO(CURRENT_SC));
1849
1850 CURRENT_SC->SCp.Message = MSGI(0);
1851 CURRENT_SC->SCp.phase &= ~disconnected;
1852
1853 MSGILEN=0;
1854
1855 /* next message if any */
1856 continue;
1857 }
1858
1859 CURRENT_SC->SCp.Message = MSGI(0);
1860
1861 switch (MSGI(0)) {
1862 case DISCONNECT:
1863 if (!RECONNECT)
1864 printk(WARN_LEAD "target was not allowed to disconnect\n", CMDINFO(CURRENT_SC));
1865
1866 CURRENT_SC->SCp.phase |= disconnected;
1867 break;
1868
1869 case COMMAND_COMPLETE:
1870 if(CURRENT_SC->SCp.phase & completed)
1871 DPRINTK(debug_msgi, DEBUG_LEAD "again COMMAND COMPLETE\n", CMDINFO(CURRENT_SC));
1872
1873 CURRENT_SC->SCp.phase |= completed;
1874 break;
1875
1876 case MESSAGE_REJECT:
1877 if (SYNCNEG==1) {
1878 printk(INFO_LEAD "Synchronous Data Transfer Request was rejected\n", CMDINFO(CURRENT_SC));
1879 SYNCNEG=2; /* negotiation completed */
1880 } else
1881 printk(INFO_LEAD "inbound message (MESSAGE REJECT)\n", CMDINFO(CURRENT_SC));
1882 break;
1883
1884 case SAVE_POINTERS:
1885 break;
1886
1887 case RESTORE_POINTERS:
1888 break;
1889
1890 case EXTENDED_MESSAGE:
1891 if(MSGILEN<2 || MSGILEN<MSGI(1)+2) {
1892 /* not yet completed */
1893 continue;
1894 }
1895
1896 switch (MSGI(2)) {
1897 case EXTENDED_SDTR:
1898 {
1899 long ticks;
1900
1901 if (MSGI(1) != 3) {
1902 printk(ERR_LEAD "SDTR message length!=3\n", CMDINFO(CURRENT_SC));
1903 break;
1904 }
1905
1906 if (!HOSTDATA(shpnt)->synchronous)
1907 break;
1908
1909 printk(INFO_LEAD, CMDINFO(CURRENT_SC));
1910 spi_print_msg(&MSGI(0));
1911 printk("\n");
1912
1913 ticks = (MSGI(3) * 4 + 49) / 50;
1914
1915 if (syncneg) {
1916 /* negotiation in progress */
1917 if (ticks > 9 || MSGI(4) < 1 || MSGI(4) > 8) {
1918 ADDMSGO(MESSAGE_REJECT);
1919 printk(INFO_LEAD "received Synchronous Data Transfer Request invalid - rejected\n", CMDINFO(CURRENT_SC));
1920 break;
1921 }
1922
1923 SYNCRATE |= ((ticks - 2) << 4) + MSGI(4);
1924 } else if (ticks <= 9 && MSGI(4) >= 1) {
1925 ADDMSGO(EXTENDED_MESSAGE);
1926 ADDMSGO(3);
1927 ADDMSGO(EXTENDED_SDTR);
1928 if (ticks < 4) {
1929 ticks = 4;
1930 ADDMSGO(50);
1931 } else
1932 ADDMSGO(MSGI(3));
1933
1934 if (MSGI(4) > 8)
1935 MSGI(4) = 8;
1936
1937 ADDMSGO(MSGI(4));
1938
1939 SYNCRATE |= ((ticks - 2) << 4) + MSGI(4);
1940 } else {
1941 /* requested SDTR is too slow, do it asynchronously */
1942 printk(INFO_LEAD "Synchronous Data Transfer Request too slow - Rejecting\n", CMDINFO(CURRENT_SC));
1943 ADDMSGO(MESSAGE_REJECT);
1944 }
1945
1946 SYNCNEG=2; /* negotiation completed */
1947 SETRATE(SYNCRATE);
1948 }
1949 break;
1950
1951 case BUS_DEVICE_RESET:
1952 {
1953 int i;
1954
1955 for(i=0; i<8; i++) {
1956 HOSTDATA(shpnt)->syncrate[i]=0;
1957 HOSTDATA(shpnt)->syncneg[i]=0;
1958 }
1959
1960 }
1961 break;
1962
1963 case EXTENDED_MODIFY_DATA_POINTER:
1964 case EXTENDED_EXTENDED_IDENTIFY:
1965 case EXTENDED_WDTR:
1966 default:
1967 ADDMSGO(MESSAGE_REJECT);
1968 break;
1969 }
1970 break;
1971 }
1972
1973 MSGILEN=0;
1974 }
1975 }
1976
1977 static void msgi_end(struct Scsi_Host *shpnt)
1978 {
1979 if(MSGILEN>0)
1980 printk(WARN_LEAD "target left before message completed (%d)\n", CMDINFO(CURRENT_SC), MSGILEN);
1981
1982 if (MSGOLEN > 0 && !(GETPORT(SSTAT1) & BUSFREE)) {
1983 DPRINTK(debug_msgi, DEBUG_LEAD "msgo pending\n", CMDINFO(CURRENT_SC));
1984 SETPORT(SCSISIG, P_MSGI | SIG_ATNO);
1985 }
1986 }
1987
1988 /*
1989 * message out phase
1990 *
1991 */
1992 static void msgo_init(struct Scsi_Host *shpnt)
1993 {
1994 if(MSGOLEN==0) {
1995 if((CURRENT_SC->SCp.phase & syncneg) && SYNCNEG==2 && SYNCRATE==0) {
1996 ADDMSGO(IDENTIFY(RECONNECT, CURRENT_SC->device->lun));
1997 } else {
1998 printk(INFO_LEAD "unexpected MESSAGE OUT phase; rejecting\n", CMDINFO(CURRENT_SC));
1999 ADDMSGO(MESSAGE_REJECT);
2000 }
2001 }
2002
2003 #if defined(AHA152X_DEBUG)
2004 if(HOSTDATA(shpnt)->debug & debug_msgo) {
2005 int i;
2006
2007 printk(DEBUG_LEAD "messages( ", CMDINFO(CURRENT_SC));
2008 for (i=0; i<MSGOLEN; i+=spi_print_msg(&MSGO(i)), printk(" "))
2009 ;
2010 printk(")\n");
2011 }
2012 #endif
2013 }
2014
2015 /*
2016 * message out phase
2017 *
2018 */
2019 static void msgo_run(struct Scsi_Host *shpnt)
2020 {
2021 if(MSGO_I==MSGOLEN)
2022 DPRINTK(debug_msgo, DEBUG_LEAD "messages all sent (%d/%d)\n", CMDINFO(CURRENT_SC), MSGO_I, MSGOLEN);
2023
2024 while(MSGO_I<MSGOLEN) {
2025 DPRINTK(debug_msgo, DEBUG_LEAD "message byte %02x (%d/%d)\n", CMDINFO(CURRENT_SC), MSGO(MSGO_I), MSGO_I, MSGOLEN);
2026
2027 if(TESTLO(SSTAT0, SPIORDY)) {
2028 DPRINTK(debug_msgo, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
2029 return;
2030 }
2031
2032 if (MSGO_I==MSGOLEN-1) {
2033 /* Leave MESSAGE OUT after transfer */
2034 SETPORT(SSTAT1, CLRATNO);
2035 }
2036
2037
2038 if (MSGO(MSGO_I) & IDENTIFY_BASE)
2039 CURRENT_SC->SCp.phase |= identified;
2040
2041 if (MSGO(MSGO_I)==ABORT)
2042 CURRENT_SC->SCp.phase |= aborted;
2043
2044 if (MSGO(MSGO_I)==BUS_DEVICE_RESET)
2045 CURRENT_SC->SCp.phase |= resetted;
2046
2047 SETPORT(SCSIDAT, MSGO(MSGO_I++));
2048 }
2049 }
2050
2051 static void msgo_end(struct Scsi_Host *shpnt)
2052 {
2053 if(MSGO_I<MSGOLEN) {
2054 printk(ERR_LEAD "message sent incompletely (%d/%d)\n", CMDINFO(CURRENT_SC), MSGO_I, MSGOLEN);
2055 if(SYNCNEG==1) {
2056 printk(INFO_LEAD "Synchronous Data Transfer Request was rejected\n", CMDINFO(CURRENT_SC));
2057 SYNCNEG=2;
2058 }
2059 }
2060
2061 MSGO_I = 0;
2062 MSGOLEN = 0;
2063 }
2064
2065 /*
2066 * command phase
2067 *
2068 */
2069 static void cmd_init(struct Scsi_Host *shpnt)
2070 {
2071 if (CURRENT_SC->SCp.sent_command) {
2072 printk(ERR_LEAD "command already sent\n", CMDINFO(CURRENT_SC));
2073 done(shpnt, DID_ERROR << 16);
2074 return;
2075 }
2076
2077 #if defined(AHA152X_DEBUG)
2078 if (HOSTDATA(shpnt)->debug & debug_cmd) {
2079 printk(DEBUG_LEAD "cmd_init: ", CMDINFO(CURRENT_SC));
2080 __scsi_print_command(CURRENT_SC->cmnd);
2081 }
2082 #endif
2083
2084 CMD_I=0;
2085 }
2086
2087 /*
2088 * command phase
2089 *
2090 */
2091 static void cmd_run(struct Scsi_Host *shpnt)
2092 {
2093 if(CMD_I==CURRENT_SC->cmd_len) {
2094 DPRINTK(debug_cmd, DEBUG_LEAD "command already completely sent (%d/%d)", CMDINFO(CURRENT_SC), CMD_I, CURRENT_SC->cmd_len);
2095 disp_ports(shpnt);
2096 }
2097
2098 while(CMD_I<CURRENT_SC->cmd_len) {
2099 DPRINTK(debug_cmd, DEBUG_LEAD "command byte %02x (%d/%d)\n", CMDINFO(CURRENT_SC), CURRENT_SC->cmnd[CMD_I], CMD_I, CURRENT_SC->cmd_len);
2100
2101 if(TESTLO(SSTAT0, SPIORDY)) {
2102 DPRINTK(debug_cmd, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
2103 return;
2104 }
2105
2106 SETPORT(SCSIDAT, CURRENT_SC->cmnd[CMD_I++]);
2107 }
2108 }
2109
2110 static void cmd_end(struct Scsi_Host *shpnt)
2111 {
2112 if(CMD_I<CURRENT_SC->cmd_len)
2113 printk(ERR_LEAD "command sent incompletely (%d/%d)\n", CMDINFO(CURRENT_SC), CMD_I, CURRENT_SC->cmd_len);
2114 else
2115 CURRENT_SC->SCp.sent_command++;
2116 }
2117
2118 /*
2119 * status phase
2120 *
2121 */
2122 static void status_run(struct Scsi_Host *shpnt)
2123 {
2124 if(TESTLO(SSTAT0,SPIORDY)) {
2125 DPRINTK(debug_status, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
2126 return;
2127 }
2128
2129 CURRENT_SC->SCp.Status = GETPORT(SCSIDAT);
2130
2131 #if defined(AHA152X_DEBUG)
2132 if (HOSTDATA(shpnt)->debug & debug_status) {
2133 printk(DEBUG_LEAD "inbound status %02x ", CMDINFO(CURRENT_SC), CURRENT_SC->SCp.Status);
2134 scsi_print_status(CURRENT_SC->SCp.Status);
2135 printk("\n");
2136 }
2137 #endif
2138 }
2139
2140 /*
2141 * data in phase
2142 *
2143 */
2144 static void datai_init(struct Scsi_Host *shpnt)
2145 {
2146 SETPORT(DMACNTRL0, RSTFIFO);
2147 SETPORT(DMACNTRL0, RSTFIFO|ENDMA);
2148
2149 SETPORT(SXFRCTL0, CH1|CLRSTCNT);
2150 SETPORT(SXFRCTL0, CH1|SCSIEN|DMAEN);
2151
2152 SETPORT(SIMODE0, 0);
2153 SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE);
2154
2155 DATA_LEN=0;
2156 DPRINTK(debug_datai,
2157 DEBUG_LEAD "datai_init: request_bufflen=%d resid=%d\n",
2158 CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC),
2159 scsi_get_resid(CURRENT_SC));
2160 }
2161
2162 static void datai_run(struct Scsi_Host *shpnt)
2163 {
2164 unsigned long the_time;
2165 int fifodata, data_count;
2166
2167 /*
2168 * loop while the phase persists or the fifos are not empty
2169 *
2170 */
2171 while(TESTLO(DMASTAT, INTSTAT) || TESTLO(DMASTAT, DFIFOEMP) || TESTLO(SSTAT2, SEMPTY)) {
2172 /* FIXME: maybe this should be done by setting up
2173 * STCNT to trigger ENSWRAP interrupt, instead of
2174 * polling for DFIFOFULL
2175 */
2176 the_time=jiffies + 100*HZ;
2177 while(TESTLO(DMASTAT, DFIFOFULL|INTSTAT) && time_before(jiffies,the_time))
2178 barrier();
2179
2180 if(TESTLO(DMASTAT, DFIFOFULL|INTSTAT)) {
2181 printk(ERR_LEAD "datai timeout", CMDINFO(CURRENT_SC));
2182 disp_ports(shpnt);
2183 break;
2184 }
2185
2186 if(TESTHI(DMASTAT, DFIFOFULL)) {
2187 fifodata = 128;
2188 } else {
2189 the_time=jiffies + 100*HZ;
2190 while(TESTLO(SSTAT2, SEMPTY) && time_before(jiffies,the_time))
2191 barrier();
2192
2193 if(TESTLO(SSTAT2, SEMPTY)) {
2194 printk(ERR_LEAD "datai sempty timeout", CMDINFO(CURRENT_SC));
2195 disp_ports(shpnt);
2196 break;
2197 }
2198
2199 fifodata = GETPORT(FIFOSTAT);
2200 }
2201
2202 if(CURRENT_SC->SCp.this_residual>0) {
2203 while(fifodata>0 && CURRENT_SC->SCp.this_residual>0) {
2204 data_count = fifodata>CURRENT_SC->SCp.this_residual ?
2205 CURRENT_SC->SCp.this_residual :
2206 fifodata;
2207 fifodata -= data_count;
2208
2209 if(data_count & 1) {
2210 DPRINTK(debug_datai, DEBUG_LEAD "8bit\n", CMDINFO(CURRENT_SC));
2211 SETPORT(DMACNTRL0, ENDMA|_8BIT);
2212 *CURRENT_SC->SCp.ptr++ = GETPORT(DATAPORT);
2213 CURRENT_SC->SCp.this_residual--;
2214 DATA_LEN++;
2215 SETPORT(DMACNTRL0, ENDMA);
2216 }
2217
2218 if(data_count > 1) {
2219 DPRINTK(debug_datai, DEBUG_LEAD "16bit(%d)\n", CMDINFO(CURRENT_SC), data_count);
2220 data_count >>= 1;
2221 insw(DATAPORT, CURRENT_SC->SCp.ptr, data_count);
2222 CURRENT_SC->SCp.ptr += 2 * data_count;
2223 CURRENT_SC->SCp.this_residual -= 2 * data_count;
2224 DATA_LEN += 2 * data_count;
2225 }
2226
2227 if(CURRENT_SC->SCp.this_residual==0 && CURRENT_SC->SCp.buffers_residual>0) {
2228 /* advance to next buffer */
2229 CURRENT_SC->SCp.buffers_residual--;
2230 CURRENT_SC->SCp.buffer++;
2231 CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer);
2232 CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length;
2233 }
2234 }
2235 } else if(fifodata>0) {
2236 printk(ERR_LEAD "no buffers left for %d(%d) bytes (data overrun!?)\n", CMDINFO(CURRENT_SC), fifodata, GETPORT(FIFOSTAT));
2237 SETPORT(DMACNTRL0, ENDMA|_8BIT);
2238 while(fifodata>0) {
2239 int data;
2240 data=GETPORT(DATAPORT);
2241 DPRINTK(debug_datai, DEBUG_LEAD "data=%02x\n", CMDINFO(CURRENT_SC), data);
2242 fifodata--;
2243 DATA_LEN++;
2244 }
2245 SETPORT(DMACNTRL0, ENDMA|_8BIT);
2246 }
2247 }
2248
2249 if(TESTLO(DMASTAT, INTSTAT) ||
2250 TESTLO(DMASTAT, DFIFOEMP) ||
2251 TESTLO(SSTAT2, SEMPTY) ||
2252 GETPORT(FIFOSTAT)>0) {
2253 /*
2254 * something went wrong, if there's something left in the fifos
2255 * or the phase didn't change
2256 */
2257 printk(ERR_LEAD "fifos should be empty and phase should have changed\n", CMDINFO(CURRENT_SC));
2258 disp_ports(shpnt);
2259 }
2260
2261 if(DATA_LEN!=GETSTCNT()) {
2262 printk(ERR_LEAD
2263 "manual transfer count differs from automatic (count=%d;stcnt=%d;diff=%d;fifostat=%d)",
2264 CMDINFO(CURRENT_SC), DATA_LEN, GETSTCNT(), GETSTCNT()-DATA_LEN, GETPORT(FIFOSTAT));
2265 disp_ports(shpnt);
2266 mdelay(10000);
2267 }
2268 }
2269
2270 static void datai_end(struct Scsi_Host *shpnt)
2271 {
2272 CMD_INC_RESID(CURRENT_SC, -GETSTCNT());
2273
2274 DPRINTK(debug_datai,
2275 DEBUG_LEAD "datai_end: request_bufflen=%d resid=%d stcnt=%d\n",
2276 CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC),
2277 scsi_get_resid(CURRENT_SC), GETSTCNT());
2278
2279 SETPORT(SXFRCTL0, CH1|CLRSTCNT);
2280 SETPORT(DMACNTRL0, 0);
2281 }
2282
2283 /*
2284 * data out phase
2285 *
2286 */
2287 static void datao_init(struct Scsi_Host *shpnt)
2288 {
2289 SETPORT(DMACNTRL0, WRITE_READ | RSTFIFO);
2290 SETPORT(DMACNTRL0, WRITE_READ | ENDMA);
2291
2292 SETPORT(SXFRCTL0, CH1|CLRSTCNT);
2293 SETPORT(SXFRCTL0, CH1|SCSIEN|DMAEN);
2294
2295 SETPORT(SIMODE0, 0);
2296 SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE );
2297
2298 DATA_LEN = scsi_get_resid(CURRENT_SC);
2299
2300 DPRINTK(debug_datao,
2301 DEBUG_LEAD "datao_init: request_bufflen=%d; resid=%d\n",
2302 CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC),
2303 scsi_get_resid(CURRENT_SC));
2304 }
2305
2306 static void datao_run(struct Scsi_Host *shpnt)
2307 {
2308 unsigned long the_time;
2309 int data_count;
2310
2311 /* until phase changes or all data sent */
2312 while(TESTLO(DMASTAT, INTSTAT) && CURRENT_SC->SCp.this_residual>0) {
2313 data_count = 128;
2314 if(data_count > CURRENT_SC->SCp.this_residual)
2315 data_count=CURRENT_SC->SCp.this_residual;
2316
2317 if(TESTLO(DMASTAT, DFIFOEMP)) {
2318 printk(ERR_LEAD "datao fifo not empty (%d)", CMDINFO(CURRENT_SC), GETPORT(FIFOSTAT));
2319 disp_ports(shpnt);
2320 break;
2321 }
2322
2323 if(data_count & 1) {
2324 SETPORT(DMACNTRL0,WRITE_READ|ENDMA|_8BIT);
2325 SETPORT(DATAPORT, *CURRENT_SC->SCp.ptr++);
2326 CURRENT_SC->SCp.this_residual--;
2327 CMD_INC_RESID(CURRENT_SC, -1);
2328 SETPORT(DMACNTRL0,WRITE_READ|ENDMA);
2329 }
2330
2331 if(data_count > 1) {
2332 data_count >>= 1;
2333 outsw(DATAPORT, CURRENT_SC->SCp.ptr, data_count);
2334 CURRENT_SC->SCp.ptr += 2 * data_count;
2335 CURRENT_SC->SCp.this_residual -= 2 * data_count;
2336 CMD_INC_RESID(CURRENT_SC, -2 * data_count);
2337 }
2338
2339 if(CURRENT_SC->SCp.this_residual==0 && CURRENT_SC->SCp.buffers_residual>0) {
2340 /* advance to next buffer */
2341 CURRENT_SC->SCp.buffers_residual--;
2342 CURRENT_SC->SCp.buffer++;
2343 CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer);
2344 CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length;
2345 }
2346
2347 the_time=jiffies + 100*HZ;
2348 while(TESTLO(DMASTAT, DFIFOEMP|INTSTAT) && time_before(jiffies,the_time))
2349 barrier();
2350
2351 if(TESTLO(DMASTAT, DFIFOEMP|INTSTAT)) {
2352 printk(ERR_LEAD "dataout timeout", CMDINFO(CURRENT_SC));
2353 disp_ports(shpnt);
2354 break;
2355 }
2356 }
2357 }
2358
2359 static void datao_end(struct Scsi_Host *shpnt)
2360 {
2361 if(TESTLO(DMASTAT, DFIFOEMP)) {
2362 int data_count = (DATA_LEN - scsi_get_resid(CURRENT_SC)) -
2363 GETSTCNT();
2364
2365 DPRINTK(debug_datao, DEBUG_LEAD "datao: %d bytes to resend (%d written, %d transferred)\n",
2366 CMDINFO(CURRENT_SC),
2367 data_count,
2368 DATA_LEN - scsi_get_resid(CURRENT_SC),
2369 GETSTCNT());
2370
2371 CMD_INC_RESID(CURRENT_SC, data_count);
2372
2373 data_count -= CURRENT_SC->SCp.ptr -
2374 SG_ADDRESS(CURRENT_SC->SCp.buffer);
2375 while(data_count>0) {
2376 CURRENT_SC->SCp.buffer--;
2377 CURRENT_SC->SCp.buffers_residual++;
2378 data_count -= CURRENT_SC->SCp.buffer->length;
2379 }
2380 CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer) -
2381 data_count;
2382 CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length +
2383 data_count;
2384 }
2385
2386 DPRINTK(debug_datao, DEBUG_LEAD "datao_end: request_bufflen=%d; resid=%d; stcnt=%d\n",
2387 CMDINFO(CURRENT_SC),
2388 scsi_bufflen(CURRENT_SC),
2389 scsi_get_resid(CURRENT_SC),
2390 GETSTCNT());
2391
2392 SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT);
2393 SETPORT(SXFRCTL0, CH1);
2394
2395 SETPORT(DMACNTRL0, 0);
2396 }
2397
2398 /*
2399 * figure out what state we're in
2400 *
2401 */
2402 static int update_state(struct Scsi_Host *shpnt)
2403 {
2404 int dataphase=0;
2405 unsigned int stat0 = GETPORT(SSTAT0);
2406 unsigned int stat1 = GETPORT(SSTAT1);
2407
2408 PREVSTATE = STATE;
2409 STATE=unknown;
2410
2411 if(stat1 & SCSIRSTI) {
2412 STATE=rsti;
2413 SETPORT(SCSISEQ,0);
2414 SETPORT(SSTAT1,SCSIRSTI);
2415 } else if(stat0 & SELDI && PREVSTATE==busfree) {
2416 STATE=seldi;
2417 } else if(stat0 & SELDO && CURRENT_SC && (CURRENT_SC->SCp.phase & selecting)) {
2418 STATE=seldo;
2419 } else if(stat1 & SELTO) {
2420 STATE=selto;
2421 } else if(stat1 & BUSFREE) {
2422 STATE=busfree;
2423 SETPORT(SSTAT1,BUSFREE);
2424 } else if(stat1 & SCSIPERR) {
2425 STATE=parerr;
2426 SETPORT(SSTAT1,SCSIPERR);
2427 } else if(stat1 & REQINIT) {
2428 switch(GETPORT(SCSISIG) & P_MASK) {
2429 case P_MSGI: STATE=msgi; break;
2430 case P_MSGO: STATE=msgo; break;
2431 case P_DATAO: STATE=datao; break;
2432 case P_DATAI: STATE=datai; break;
2433 case P_STATUS: STATE=status; break;
2434 case P_CMD: STATE=cmd; break;
2435 }
2436 dataphase=1;
2437 }
2438
2439 if((stat0 & SELDI) && STATE!=seldi && !dataphase) {
2440 printk(INFO_LEAD "reselection missed?", CMDINFO(CURRENT_SC));
2441 disp_ports(shpnt);
2442 }
2443
2444 if(STATE!=PREVSTATE) {
2445 LASTSTATE=PREVSTATE;
2446 }
2447
2448 return dataphase;
2449 }
2450
2451 /*
2452 * handle parity error
2453 *
2454 * FIXME: in which phase?
2455 *
2456 */
2457 static void parerr_run(struct Scsi_Host *shpnt)
2458 {
2459 printk(ERR_LEAD "parity error\n", CMDINFO(CURRENT_SC));
2460 done(shpnt, DID_PARITY << 16);
2461 }
2462
2463 /*
2464 * handle reset in
2465 *
2466 */
2467 static void rsti_run(struct Scsi_Host *shpnt)
2468 {
2469 Scsi_Cmnd *ptr;
2470
2471 printk(KERN_NOTICE "aha152x%d: scsi reset in\n", HOSTNO);
2472
2473 ptr=DISCONNECTED_SC;
2474 while(ptr) {
2475 Scsi_Cmnd *next = SCNEXT(ptr);
2476
2477 if (!ptr->device->soft_reset) {
2478 remove_SC(&DISCONNECTED_SC, ptr);
2479
2480 kfree(ptr->host_scribble);
2481 ptr->host_scribble=NULL;
2482
2483 ptr->result = DID_RESET << 16;
2484 ptr->scsi_done(ptr);
2485 }
2486
2487 ptr = next;
2488 }
2489
2490 if(CURRENT_SC && !CURRENT_SC->device->soft_reset)
2491 done(shpnt, DID_RESET << 16 );
2492 }
2493
2494
2495 /*
2496 * bottom-half handler
2497 *
2498 */
2499 static void is_complete(struct Scsi_Host *shpnt)
2500 {
2501 int dataphase;
2502 unsigned long flags;
2503 int pending;
2504
2505 if(!shpnt)
2506 return;
2507
2508 DO_LOCK(flags);
2509
2510 if( HOSTDATA(shpnt)->service==0 ) {
2511 DO_UNLOCK(flags);
2512 return;
2513 }
2514
2515 HOSTDATA(shpnt)->service = 0;
2516
2517 if(HOSTDATA(shpnt)->in_intr) {
2518 DO_UNLOCK(flags);
2519 /* aha152x_error never returns.. */
2520 aha152x_error(shpnt, "bottom-half already running!?");
2521 }
2522 HOSTDATA(shpnt)->in_intr++;
2523
2524 /*
2525 * loop while there are interrupt conditions pending
2526 *
2527 */
2528 do {
2529 unsigned long start = jiffies;
2530 DO_UNLOCK(flags);
2531
2532 dataphase=update_state(shpnt);
2533
2534 DPRINTK(debug_phases, LEAD "start %s %s(%s)\n", CMDINFO(CURRENT_SC), states[STATE].name, states[PREVSTATE].name, states[LASTSTATE].name);
2535
2536 /*
2537 * end previous state
2538 *
2539 */
2540 if(PREVSTATE!=STATE && states[PREVSTATE].end)
2541 states[PREVSTATE].end(shpnt);
2542
2543 /*
2544 * disable SPIO mode if previous phase used it
2545 * and this one doesn't
2546 *
2547 */
2548 if(states[PREVSTATE].spio && !states[STATE].spio) {
2549 SETPORT(SXFRCTL0, CH1);
2550 SETPORT(DMACNTRL0, 0);
2551 if(CURRENT_SC)
2552 CURRENT_SC->SCp.phase &= ~spiordy;
2553 }
2554
2555 /*
2556 * accept current dataphase phase
2557 *
2558 */
2559 if(dataphase) {
2560 SETPORT(SSTAT0, REQINIT);
2561 SETPORT(SCSISIG, GETPORT(SCSISIG) & P_MASK);
2562 SETPORT(SSTAT1, PHASECHG);
2563 }
2564
2565 /*
2566 * enable SPIO mode if previous didn't use it
2567 * and this one does
2568 *
2569 */
2570 if(!states[PREVSTATE].spio && states[STATE].spio) {
2571 SETPORT(DMACNTRL0, 0);
2572 SETPORT(SXFRCTL0, CH1|SPIOEN);
2573 if(CURRENT_SC)
2574 CURRENT_SC->SCp.phase |= spiordy;
2575 }
2576
2577 /*
2578 * initialize for new state
2579 *
2580 */
2581 if(PREVSTATE!=STATE && states[STATE].init)
2582 states[STATE].init(shpnt);
2583
2584 /*
2585 * handle current state
2586 *
2587 */
2588 if(states[STATE].run)
2589 states[STATE].run(shpnt);
2590 else
2591 printk(ERR_LEAD "unexpected state (%x)\n", CMDINFO(CURRENT_SC), STATE);
2592
2593 /*
2594 * setup controller to interrupt on
2595 * the next expected condition and
2596 * loop if it's already there
2597 *
2598 */
2599 DO_LOCK(flags);
2600 pending=setup_expected_interrupts(shpnt);
2601 #if defined(AHA152X_STAT)
2602 HOSTDATA(shpnt)->count[STATE]++;
2603 if(PREVSTATE!=STATE)
2604 HOSTDATA(shpnt)->count_trans[STATE]++;
2605 HOSTDATA(shpnt)->time[STATE] += jiffies-start;
2606 #endif
2607
2608 DPRINTK(debug_phases, LEAD "end %s %s(%s)\n", CMDINFO(CURRENT_SC), states[STATE].name, states[PREVSTATE].name, states[LASTSTATE].name);
2609 } while(pending);
2610
2611 /*
2612 * enable interrupts and leave bottom-half
2613 *
2614 */
2615 HOSTDATA(shpnt)->in_intr--;
2616 SETBITS(DMACNTRL0, INTEN);
2617 DO_UNLOCK(flags);
2618 }
2619
2620
2621 /*
2622 * Dump the current driver status and panic
2623 */
2624 static void aha152x_error(struct Scsi_Host *shpnt, char *msg)
2625 {
2626 printk(KERN_EMERG "\naha152x%d: %s\n", HOSTNO, msg);
2627 show_queues(shpnt);
2628 panic("aha152x panic\n");
2629 }
2630
2631 /*
2632 * Display registers of AIC-6260
2633 */
2634 static void disp_ports(struct Scsi_Host *shpnt)
2635 {
2636 #if defined(AHA152X_DEBUG)
2637 int s;
2638
2639 printk("\n%s: %s(%s) ",
2640 CURRENT_SC ? "busy" : "waiting",
2641 states[STATE].name,
2642 states[PREVSTATE].name);
2643
2644 s = GETPORT(SCSISEQ);
2645 printk("SCSISEQ( ");
2646 if (s & TEMODEO)
2647 printk("TARGET MODE ");
2648 if (s & ENSELO)
2649 printk("SELO ");
2650 if (s & ENSELI)
2651 printk("SELI ");
2652 if (s & ENRESELI)
2653 printk("RESELI ");
2654 if (s & ENAUTOATNO)
2655 printk("AUTOATNO ");
2656 if (s & ENAUTOATNI)
2657 printk("AUTOATNI ");
2658 if (s & ENAUTOATNP)
2659 printk("AUTOATNP ");
2660 if (s & SCSIRSTO)
2661 printk("SCSIRSTO ");
2662 printk(");");
2663
2664 printk(" SCSISIG(");
2665 s = GETPORT(SCSISIG);
2666 switch (s & P_MASK) {
2667 case P_DATAO:
2668 printk("DATA OUT");
2669 break;
2670 case P_DATAI:
2671 printk("DATA IN");
2672 break;
2673 case P_CMD:
2674 printk("COMMAND");
2675 break;
2676 case P_STATUS:
2677 printk("STATUS");
2678 break;
2679 case P_MSGO:
2680 printk("MESSAGE OUT");
2681 break;
2682 case P_MSGI:
2683 printk("MESSAGE IN");
2684 break;
2685 default:
2686 printk("*invalid*");
2687 break;
2688 }
2689
2690 printk("); ");
2691
2692 printk("INTSTAT (%s); ", TESTHI(DMASTAT, INTSTAT) ? "hi" : "lo");
2693
2694 printk("SSTAT( ");
2695 s = GETPORT(SSTAT0);
2696 if (s & TARGET)
2697 printk("TARGET ");
2698 if (s & SELDO)
2699 printk("SELDO ");
2700 if (s & SELDI)
2701 printk("SELDI ");
2702 if (s & SELINGO)
2703 printk("SELINGO ");
2704 if (s & SWRAP)
2705 printk("SWRAP ");
2706 if (s & SDONE)
2707 printk("SDONE ");
2708 if (s & SPIORDY)
2709 printk("SPIORDY ");
2710 if (s & DMADONE)
2711 printk("DMADONE ");
2712
2713 s = GETPORT(SSTAT1);
2714 if (s & SELTO)
2715 printk("SELTO ");
2716 if (s & ATNTARG)
2717 printk("ATNTARG ");
2718 if (s & SCSIRSTI)
2719 printk("SCSIRSTI ");
2720 if (s & PHASEMIS)
2721 printk("PHASEMIS ");
2722 if (s & BUSFREE)
2723 printk("BUSFREE ");
2724 if (s & SCSIPERR)
2725 printk("SCSIPERR ");
2726 if (s & PHASECHG)
2727 printk("PHASECHG ");
2728 if (s & REQINIT)
2729 printk("REQINIT ");
2730 printk("); ");
2731
2732
2733 printk("SSTAT( ");
2734
2735 s = GETPORT(SSTAT0) & GETPORT(SIMODE0);
2736
2737 if (s & TARGET)
2738 printk("TARGET ");
2739 if (s & SELDO)
2740 printk("SELDO ");
2741 if (s & SELDI)
2742 printk("SELDI ");
2743 if (s & SELINGO)
2744 printk("SELINGO ");
2745 if (s & SWRAP)
2746 printk("SWRAP ");
2747 if (s & SDONE)
2748 printk("SDONE ");
2749 if (s & SPIORDY)
2750 printk("SPIORDY ");
2751 if (s & DMADONE)
2752 printk("DMADONE ");
2753
2754 s = GETPORT(SSTAT1) & GETPORT(SIMODE1);
2755
2756 if (s & SELTO)
2757 printk("SELTO ");
2758 if (s & ATNTARG)
2759 printk("ATNTARG ");
2760 if (s & SCSIRSTI)
2761 printk("SCSIRSTI ");
2762 if (s & PHASEMIS)
2763 printk("PHASEMIS ");
2764 if (s & BUSFREE)
2765 printk("BUSFREE ");
2766 if (s & SCSIPERR)
2767 printk("SCSIPERR ");
2768 if (s & PHASECHG)
2769 printk("PHASECHG ");
2770 if (s & REQINIT)
2771 printk("REQINIT ");
2772 printk("); ");
2773
2774 printk("SXFRCTL0( ");
2775
2776 s = GETPORT(SXFRCTL0);
2777 if (s & SCSIEN)
2778 printk("SCSIEN ");
2779 if (s & DMAEN)
2780 printk("DMAEN ");
2781 if (s & CH1)
2782 printk("CH1 ");
2783 if (s & CLRSTCNT)
2784 printk("CLRSTCNT ");
2785 if (s & SPIOEN)
2786 printk("SPIOEN ");
2787 if (s & CLRCH1)
2788 printk("CLRCH1 ");
2789 printk("); ");
2790
2791 printk("SIGNAL( ");
2792
2793 s = GETPORT(SCSISIG);
2794 if (s & SIG_ATNI)
2795 printk("ATNI ");
2796 if (s & SIG_SELI)
2797 printk("SELI ");
2798 if (s & SIG_BSYI)
2799 printk("BSYI ");
2800 if (s & SIG_REQI)
2801 printk("REQI ");
2802 if (s & SIG_ACKI)
2803 printk("ACKI ");
2804 printk("); ");
2805
2806 printk("SELID (%02x), ", GETPORT(SELID));
2807
2808 printk("STCNT (%d), ", GETSTCNT());
2809
2810 printk("SSTAT2( ");
2811
2812 s = GETPORT(SSTAT2);
2813 if (s & SOFFSET)
2814 printk("SOFFSET ");
2815 if (s & SEMPTY)
2816 printk("SEMPTY ");
2817 if (s & SFULL)
2818 printk("SFULL ");
2819 printk("); SFCNT (%d); ", s & (SFULL | SFCNT));
2820
2821 s = GETPORT(SSTAT3);
2822 printk("SCSICNT (%d), OFFCNT(%d), ", (s & 0xf0) >> 4, s & 0x0f);
2823
2824 printk("SSTAT4( ");
2825 s = GETPORT(SSTAT4);
2826 if (s & SYNCERR)
2827 printk("SYNCERR ");
2828 if (s & FWERR)
2829 printk("FWERR ");
2830 if (s & FRERR)
2831 printk("FRERR ");
2832 printk("); ");
2833
2834 printk("DMACNTRL0( ");
2835 s = GETPORT(DMACNTRL0);
2836 printk("%s ", s & _8BIT ? "8BIT" : "16BIT");
2837 printk("%s ", s & DMA ? "DMA" : "PIO");
2838 printk("%s ", s & WRITE_READ ? "WRITE" : "READ");
2839 if (s & ENDMA)
2840 printk("ENDMA ");
2841 if (s & INTEN)
2842 printk("INTEN ");
2843 if (s & RSTFIFO)
2844 printk("RSTFIFO ");
2845 if (s & SWINT)
2846 printk("SWINT ");
2847 printk("); ");
2848
2849 printk("DMASTAT( ");
2850 s = GETPORT(DMASTAT);
2851 if (s & ATDONE)
2852 printk("ATDONE ");
2853 if (s & WORDRDY)
2854 printk("WORDRDY ");
2855 if (s & DFIFOFULL)
2856 printk("DFIFOFULL ");
2857 if (s & DFIFOEMP)
2858 printk("DFIFOEMP ");
2859 printk(")\n");
2860 #endif
2861 }
2862
2863 /*
2864 * display enabled interrupts
2865 */
2866 static void disp_enintr(struct Scsi_Host *shpnt)
2867 {
2868 int s;
2869
2870 printk(KERN_DEBUG "enabled interrupts ( ");
2871
2872 s = GETPORT(SIMODE0);
2873 if (s & ENSELDO)
2874 printk("ENSELDO ");
2875 if (s & ENSELDI)
2876 printk("ENSELDI ");
2877 if (s & ENSELINGO)
2878 printk("ENSELINGO ");
2879 if (s & ENSWRAP)
2880 printk("ENSWRAP ");
2881 if (s & ENSDONE)
2882 printk("ENSDONE ");
2883 if (s & ENSPIORDY)
2884 printk("ENSPIORDY ");
2885 if (s & ENDMADONE)
2886 printk("ENDMADONE ");
2887
2888 s = GETPORT(SIMODE1);
2889 if (s & ENSELTIMO)
2890 printk("ENSELTIMO ");
2891 if (s & ENATNTARG)
2892 printk("ENATNTARG ");
2893 if (s & ENPHASEMIS)
2894 printk("ENPHASEMIS ");
2895 if (s & ENBUSFREE)
2896 printk("ENBUSFREE ");
2897 if (s & ENSCSIPERR)
2898 printk("ENSCSIPERR ");
2899 if (s & ENPHASECHG)
2900 printk("ENPHASECHG ");
2901 if (s & ENREQINIT)
2902 printk("ENREQINIT ");
2903 printk(")\n");
2904 }
2905
2906 /*
2907 * Show the command data of a command
2908 */
2909 static void show_command(Scsi_Cmnd *ptr)
2910 {
2911 scmd_printk(KERN_DEBUG, ptr, "%p: cmnd=(", ptr);
2912
2913 __scsi_print_command(ptr->cmnd);
2914
2915 printk(KERN_DEBUG "); request_bufflen=%d; resid=%d; phase |",
2916 scsi_bufflen(ptr), scsi_get_resid(ptr));
2917
2918 if (ptr->SCp.phase & not_issued)
2919 printk("not issued|");
2920 if (ptr->SCp.phase & selecting)
2921 printk("selecting|");
2922 if (ptr->SCp.phase & identified)
2923 printk("identified|");
2924 if (ptr->SCp.phase & disconnected)
2925 printk("disconnected|");
2926 if (ptr->SCp.phase & completed)
2927 printk("completed|");
2928 if (ptr->SCp.phase & spiordy)
2929 printk("spiordy|");
2930 if (ptr->SCp.phase & syncneg)
2931 printk("syncneg|");
2932 if (ptr->SCp.phase & aborted)
2933 printk("aborted|");
2934 if (ptr->SCp.phase & resetted)
2935 printk("resetted|");
2936 if( SCDATA(ptr) ) {
2937 printk("; next=0x%p\n", SCNEXT(ptr));
2938 } else {
2939 printk("; next=(host scribble NULL)\n");
2940 }
2941 }
2942
2943 /*
2944 * Dump the queued data
2945 */
2946 static void show_queues(struct Scsi_Host *shpnt)
2947 {
2948 Scsi_Cmnd *ptr;
2949 unsigned long flags;
2950
2951 DO_LOCK(flags);
2952 printk(KERN_DEBUG "\nqueue status:\nissue_SC:\n");
2953 for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr))
2954 show_command(ptr);
2955 DO_UNLOCK(flags);
2956
2957 printk(KERN_DEBUG "current_SC:\n");
2958 if (CURRENT_SC)
2959 show_command(CURRENT_SC);
2960 else
2961 printk(KERN_DEBUG "none\n");
2962
2963 printk(KERN_DEBUG "disconnected_SC:\n");
2964 for (ptr = DISCONNECTED_SC; ptr; ptr = SCDATA(ptr) ? SCNEXT(ptr) : NULL)
2965 show_command(ptr);
2966
2967 disp_ports(shpnt);
2968 disp_enintr(shpnt);
2969 }
2970
2971 #undef SPRINTF
2972 #define SPRINTF(args...) pos += sprintf(pos, ## args)
2973
2974 static int get_command(char *pos, Scsi_Cmnd * ptr)
2975 {
2976 char *start = pos;
2977 int i;
2978
2979 SPRINTF("0x%08x: target=%d; lun=%d; cmnd=( ",
2980 (unsigned int) ptr, ptr->device->id, ptr->device->lun);
2981
2982 for (i = 0; i < COMMAND_SIZE(ptr->cmnd[0]); i++)
2983 SPRINTF("0x%02x ", ptr->cmnd[i]);
2984
2985 SPRINTF("); resid=%d; residual=%d; buffers=%d; phase |",
2986 scsi_get_resid(ptr), ptr->SCp.this_residual,
2987 ptr->SCp.buffers_residual);
2988
2989 if (ptr->SCp.phase & not_issued)
2990 SPRINTF("not issued|");
2991 if (ptr->SCp.phase & selecting)
2992 SPRINTF("selecting|");
2993 if (ptr->SCp.phase & disconnected)
2994 SPRINTF("disconnected|");
2995 if (ptr->SCp.phase & aborted)
2996 SPRINTF("aborted|");
2997 if (ptr->SCp.phase & identified)
2998 SPRINTF("identified|");
2999 if (ptr->SCp.phase & completed)
3000 SPRINTF("completed|");
3001 if (ptr->SCp.phase & spiordy)
3002 SPRINTF("spiordy|");
3003 if (ptr->SCp.phase & syncneg)
3004 SPRINTF("syncneg|");
3005 SPRINTF("; next=0x%p\n", SCNEXT(ptr));
3006
3007 return (pos - start);
3008 }
3009
3010 static int get_ports(struct Scsi_Host *shpnt, char *pos)
3011 {
3012 char *start = pos;
3013 int s;
3014
3015 SPRINTF("\n%s: %s(%s) ", CURRENT_SC ? "on bus" : "waiting", states[STATE].name, states[PREVSTATE].name);
3016
3017 s = GETPORT(SCSISEQ);
3018 SPRINTF("SCSISEQ( ");
3019 if (s & TEMODEO)
3020 SPRINTF("TARGET MODE ");
3021 if (s & ENSELO)
3022 SPRINTF("SELO ");
3023 if (s & ENSELI)
3024 SPRINTF("SELI ");
3025 if (s & ENRESELI)
3026 SPRINTF("RESELI ");
3027 if (s & ENAUTOATNO)
3028 SPRINTF("AUTOATNO ");
3029 if (s & ENAUTOATNI)
3030 SPRINTF("AUTOATNI ");
3031 if (s & ENAUTOATNP)
3032 SPRINTF("AUTOATNP ");
3033 if (s & SCSIRSTO)
3034 SPRINTF("SCSIRSTO ");
3035 SPRINTF(");");
3036
3037 SPRINTF(" SCSISIG(");
3038 s = GETPORT(SCSISIG);
3039 switch (s & P_MASK) {
3040 case P_DATAO:
3041 SPRINTF("DATA OUT");
3042 break;
3043 case P_DATAI:
3044 SPRINTF("DATA IN");
3045 break;
3046 case P_CMD:
3047 SPRINTF("COMMAND");
3048 break;
3049 case P_STATUS:
3050 SPRINTF("STATUS");
3051 break;
3052 case P_MSGO:
3053 SPRINTF("MESSAGE OUT");
3054 break;
3055 case P_MSGI:
3056 SPRINTF("MESSAGE IN");
3057 break;
3058 default:
3059 SPRINTF("*invalid*");
3060 break;
3061 }
3062
3063 SPRINTF("); ");
3064
3065 SPRINTF("INTSTAT (%s); ", TESTHI(DMASTAT, INTSTAT) ? "hi" : "lo");
3066
3067 SPRINTF("SSTAT( ");
3068 s = GETPORT(SSTAT0);
3069 if (s & TARGET)
3070 SPRINTF("TARGET ");
3071 if (s & SELDO)
3072 SPRINTF("SELDO ");
3073 if (s & SELDI)
3074 SPRINTF("SELDI ");
3075 if (s & SELINGO)
3076 SPRINTF("SELINGO ");
3077 if (s & SWRAP)
3078 SPRINTF("SWRAP ");
3079 if (s & SDONE)
3080 SPRINTF("SDONE ");
3081 if (s & SPIORDY)
3082 SPRINTF("SPIORDY ");
3083 if (s & DMADONE)
3084 SPRINTF("DMADONE ");
3085
3086 s = GETPORT(SSTAT1);
3087 if (s & SELTO)
3088 SPRINTF("SELTO ");
3089 if (s & ATNTARG)
3090 SPRINTF("ATNTARG ");
3091 if (s & SCSIRSTI)
3092 SPRINTF("SCSIRSTI ");
3093 if (s & PHASEMIS)
3094 SPRINTF("PHASEMIS ");
3095 if (s & BUSFREE)
3096 SPRINTF("BUSFREE ");
3097 if (s & SCSIPERR)
3098 SPRINTF("SCSIPERR ");
3099 if (s & PHASECHG)
3100 SPRINTF("PHASECHG ");
3101 if (s & REQINIT)
3102 SPRINTF("REQINIT ");
3103 SPRINTF("); ");
3104
3105
3106 SPRINTF("SSTAT( ");
3107
3108 s = GETPORT(SSTAT0) & GETPORT(SIMODE0);
3109
3110 if (s & TARGET)
3111 SPRINTF("TARGET ");
3112 if (s & SELDO)
3113 SPRINTF("SELDO ");
3114 if (s & SELDI)
3115 SPRINTF("SELDI ");
3116 if (s & SELINGO)
3117 SPRINTF("SELINGO ");
3118 if (s & SWRAP)
3119 SPRINTF("SWRAP ");
3120 if (s & SDONE)
3121 SPRINTF("SDONE ");
3122 if (s & SPIORDY)
3123 SPRINTF("SPIORDY ");
3124 if (s & DMADONE)
3125 SPRINTF("DMADONE ");
3126
3127 s = GETPORT(SSTAT1) & GETPORT(SIMODE1);
3128
3129 if (s & SELTO)
3130 SPRINTF("SELTO ");
3131 if (s & ATNTARG)
3132 SPRINTF("ATNTARG ");
3133 if (s & SCSIRSTI)
3134 SPRINTF("SCSIRSTI ");
3135 if (s & PHASEMIS)
3136 SPRINTF("PHASEMIS ");
3137 if (s & BUSFREE)
3138 SPRINTF("BUSFREE ");
3139 if (s & SCSIPERR)
3140 SPRINTF("SCSIPERR ");
3141 if (s & PHASECHG)
3142 SPRINTF("PHASECHG ");
3143 if (s & REQINIT)
3144 SPRINTF("REQINIT ");
3145 SPRINTF("); ");
3146
3147 SPRINTF("SXFRCTL0( ");
3148
3149 s = GETPORT(SXFRCTL0);
3150 if (s & SCSIEN)
3151 SPRINTF("SCSIEN ");
3152 if (s & DMAEN)
3153 SPRINTF("DMAEN ");
3154 if (s & CH1)
3155 SPRINTF("CH1 ");
3156 if (s & CLRSTCNT)
3157 SPRINTF("CLRSTCNT ");
3158 if (s & SPIOEN)
3159 SPRINTF("SPIOEN ");
3160 if (s & CLRCH1)
3161 SPRINTF("CLRCH1 ");
3162 SPRINTF("); ");
3163
3164 SPRINTF("SIGNAL( ");
3165
3166 s = GETPORT(SCSISIG);
3167 if (s & SIG_ATNI)
3168 SPRINTF("ATNI ");
3169 if (s & SIG_SELI)
3170 SPRINTF("SELI ");
3171 if (s & SIG_BSYI)
3172 SPRINTF("BSYI ");
3173 if (s & SIG_REQI)
3174 SPRINTF("REQI ");
3175 if (s & SIG_ACKI)
3176 SPRINTF("ACKI ");
3177 SPRINTF("); ");
3178
3179 SPRINTF("SELID(%02x), ", GETPORT(SELID));
3180
3181 SPRINTF("STCNT(%d), ", GETSTCNT());
3182
3183 SPRINTF("SSTAT2( ");
3184
3185 s = GETPORT(SSTAT2);
3186 if (s & SOFFSET)
3187 SPRINTF("SOFFSET ");
3188 if (s & SEMPTY)
3189 SPRINTF("SEMPTY ");
3190 if (s & SFULL)
3191 SPRINTF("SFULL ");
3192 SPRINTF("); SFCNT (%d); ", s & (SFULL | SFCNT));
3193
3194 s = GETPORT(SSTAT3);
3195 SPRINTF("SCSICNT (%d), OFFCNT(%d), ", (s & 0xf0) >> 4, s & 0x0f);
3196
3197 SPRINTF("SSTAT4( ");
3198 s = GETPORT(SSTAT4);
3199 if (s & SYNCERR)
3200 SPRINTF("SYNCERR ");
3201 if (s & FWERR)
3202 SPRINTF("FWERR ");
3203 if (s & FRERR)
3204 SPRINTF("FRERR ");
3205 SPRINTF("); ");
3206
3207 SPRINTF("DMACNTRL0( ");
3208 s = GETPORT(DMACNTRL0);
3209 SPRINTF("%s ", s & _8BIT ? "8BIT" : "16BIT");
3210 SPRINTF("%s ", s & DMA ? "DMA" : "PIO");
3211 SPRINTF("%s ", s & WRITE_READ ? "WRITE" : "READ");
3212 if (s & ENDMA)
3213 SPRINTF("ENDMA ");
3214 if (s & INTEN)
3215 SPRINTF("INTEN ");
3216 if (s & RSTFIFO)
3217 SPRINTF("RSTFIFO ");
3218 if (s & SWINT)
3219 SPRINTF("SWINT ");
3220 SPRINTF("); ");
3221
3222 SPRINTF("DMASTAT( ");
3223 s = GETPORT(DMASTAT);
3224 if (s & ATDONE)
3225 SPRINTF("ATDONE ");
3226 if (s & WORDRDY)
3227 SPRINTF("WORDRDY ");
3228 if (s & DFIFOFULL)
3229 SPRINTF("DFIFOFULL ");
3230 if (s & DFIFOEMP)
3231 SPRINTF("DFIFOEMP ");
3232 SPRINTF(")\n");
3233
3234 SPRINTF("enabled interrupts( ");
3235
3236 s = GETPORT(SIMODE0);
3237 if (s & ENSELDO)
3238 SPRINTF("ENSELDO ");
3239 if (s & ENSELDI)
3240 SPRINTF("ENSELDI ");
3241 if (s & ENSELINGO)
3242 SPRINTF("ENSELINGO ");
3243 if (s & ENSWRAP)
3244 SPRINTF("ENSWRAP ");
3245 if (s & ENSDONE)
3246 SPRINTF("ENSDONE ");
3247 if (s & ENSPIORDY)
3248 SPRINTF("ENSPIORDY ");
3249 if (s & ENDMADONE)
3250 SPRINTF("ENDMADONE ");
3251
3252 s = GETPORT(SIMODE1);
3253 if (s & ENSELTIMO)
3254 SPRINTF("ENSELTIMO ");
3255 if (s & ENATNTARG)
3256 SPRINTF("ENATNTARG ");
3257 if (s & ENPHASEMIS)
3258 SPRINTF("ENPHASEMIS ");
3259 if (s & ENBUSFREE)
3260 SPRINTF("ENBUSFREE ");
3261 if (s & ENSCSIPERR)
3262 SPRINTF("ENSCSIPERR ");
3263 if (s & ENPHASECHG)
3264 SPRINTF("ENPHASECHG ");
3265 if (s & ENREQINIT)
3266 SPRINTF("ENREQINIT ");
3267 SPRINTF(")\n");
3268
3269 return (pos - start);
3270 }
3271
3272 static int aha152x_set_info(char *buffer, int length, struct Scsi_Host *shpnt)
3273 {
3274 if(!shpnt || !buffer || length<8 || strncmp("aha152x ", buffer, 8)!=0)
3275 return -EINVAL;
3276
3277 #if defined(AHA152X_DEBUG)
3278 if(length>14 && strncmp("debug ", buffer+8, 6)==0) {
3279 int debug = HOSTDATA(shpnt)->debug;
3280
3281 HOSTDATA(shpnt)->debug = simple_strtoul(buffer+14, NULL, 0);
3282
3283 printk(KERN_INFO "aha152x%d: debugging options set to 0x%04x (were 0x%04x)\n", HOSTNO, HOSTDATA(shpnt)->debug, debug);
3284 } else
3285 #endif
3286 #if defined(AHA152X_STAT)
3287 if(length>13 && strncmp("reset", buffer+8, 5)==0) {
3288 int i;
3289
3290 HOSTDATA(shpnt)->total_commands=0;
3291 HOSTDATA(shpnt)->disconnections=0;
3292 HOSTDATA(shpnt)->busfree_without_any_action=0;
3293 HOSTDATA(shpnt)->busfree_without_old_command=0;
3294 HOSTDATA(shpnt)->busfree_without_new_command=0;
3295 HOSTDATA(shpnt)->busfree_without_done_command=0;
3296 HOSTDATA(shpnt)->busfree_with_check_condition=0;
3297 for (i = idle; i<maxstate; i++) {
3298 HOSTDATA(shpnt)->count[i]=0;
3299 HOSTDATA(shpnt)->count_trans[i]=0;
3300 HOSTDATA(shpnt)->time[i]=0;
3301 }
3302
3303 printk(KERN_INFO "aha152x%d: stats reseted.\n", HOSTNO);
3304
3305 } else
3306 #endif
3307 {
3308 return -EINVAL;
3309 }
3310
3311
3312 return length;
3313 }
3314
3315 #undef SPRINTF
3316 #define SPRINTF(args...) \
3317 do { if(pos < buffer + length) pos += sprintf(pos, ## args); } while(0)
3318
3319 static int aha152x_proc_info(struct Scsi_Host *shpnt, char *buffer, char **start,
3320 off_t offset, int length, int inout)
3321 {
3322 int i;
3323 char *pos = buffer;
3324 Scsi_Cmnd *ptr;
3325 unsigned long flags;
3326 int thislength;
3327
3328 DPRINTK(debug_procinfo,
3329 KERN_DEBUG "aha152x_proc_info: buffer=%p offset=%ld length=%d hostno=%d inout=%d\n",
3330 buffer, offset, length, shpnt->host_no, inout);
3331
3332
3333 if (inout)
3334 return aha152x_set_info(buffer, length, shpnt);
3335
3336 SPRINTF(AHA152X_REVID "\n");
3337
3338 SPRINTF("ioports 0x%04lx to 0x%04lx\n",
3339 shpnt->io_port, shpnt->io_port + shpnt->n_io_port - 1);
3340 SPRINTF("interrupt 0x%02x\n", shpnt->irq);
3341 SPRINTF("disconnection/reconnection %s\n",
3342 RECONNECT ? "enabled" : "disabled");
3343 SPRINTF("parity checking %s\n",
3344 PARITY ? "enabled" : "disabled");
3345 SPRINTF("synchronous transfers %s\n",
3346 SYNCHRONOUS ? "enabled" : "disabled");
3347 SPRINTF("%d commands currently queued\n", HOSTDATA(shpnt)->commands);
3348
3349 if(SYNCHRONOUS) {
3350 SPRINTF("synchronously operating targets (tick=50 ns):\n");
3351 for (i = 0; i < 8; i++)
3352 if (HOSTDATA(shpnt)->syncrate[i] & 0x7f)
3353 SPRINTF("target %d: period %dT/%dns; req/ack offset %d\n",
3354 i,
3355 (((HOSTDATA(shpnt)->syncrate[i] & 0x70) >> 4) + 2),
3356 (((HOSTDATA(shpnt)->syncrate[i] & 0x70) >> 4) + 2) * 50,
3357 HOSTDATA(shpnt)->syncrate[i] & 0x0f);
3358 }
3359 #if defined(AHA152X_DEBUG)
3360 #define PDEBUG(flags,txt) \
3361 if(HOSTDATA(shpnt)->debug & flags) SPRINTF("(%s) ", txt);
3362
3363 SPRINTF("enabled debugging options: ");
3364
3365 PDEBUG(debug_procinfo, "procinfo");
3366 PDEBUG(debug_queue, "queue");
3367 PDEBUG(debug_intr, "interrupt");
3368 PDEBUG(debug_selection, "selection");
3369 PDEBUG(debug_msgo, "message out");
3370 PDEBUG(debug_msgi, "message in");
3371 PDEBUG(debug_status, "status");
3372 PDEBUG(debug_cmd, "command");
3373 PDEBUG(debug_datai, "data in");
3374 PDEBUG(debug_datao, "data out");
3375 PDEBUG(debug_eh, "eh");
3376 PDEBUG(debug_locking, "locks");
3377 PDEBUG(debug_phases, "phases");
3378
3379 SPRINTF("\n");
3380 #endif
3381
3382 SPRINTF("\nqueue status:\n");
3383 DO_LOCK(flags);
3384 if (ISSUE_SC) {
3385 SPRINTF("not yet issued commands:\n");
3386 for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr))
3387 pos += get_command(pos, ptr);
3388 } else
3389 SPRINTF("no not yet issued commands\n");
3390 DO_UNLOCK(flags);
3391
3392 if (CURRENT_SC) {
3393 SPRINTF("current command:\n");
3394 pos += get_command(pos, CURRENT_SC);
3395 } else
3396 SPRINTF("no current command\n");
3397
3398 if (DISCONNECTED_SC) {
3399 SPRINTF("disconnected commands:\n");
3400 for (ptr = DISCONNECTED_SC; ptr; ptr = SCNEXT(ptr))
3401 pos += get_command(pos, ptr);
3402 } else
3403 SPRINTF("no disconnected commands\n");
3404
3405 pos += get_ports(shpnt, pos);
3406
3407 #if defined(AHA152X_STAT)
3408 SPRINTF("statistics:\n"
3409 "total commands: %d\n"
3410 "disconnections: %d\n"
3411 "busfree with check condition: %d\n"
3412 "busfree without old command: %d\n"
3413 "busfree without new command: %d\n"
3414 "busfree without done command: %d\n"
3415 "busfree without any action: %d\n"
3416 "state "
3417 "transitions "
3418 "count "
3419 "time\n",
3420 HOSTDATA(shpnt)->total_commands,
3421 HOSTDATA(shpnt)->disconnections,
3422 HOSTDATA(shpnt)->busfree_with_check_condition,
3423 HOSTDATA(shpnt)->busfree_without_old_command,
3424 HOSTDATA(shpnt)->busfree_without_new_command,
3425 HOSTDATA(shpnt)->busfree_without_done_command,
3426 HOSTDATA(shpnt)->busfree_without_any_action);
3427 for(i=0; i<maxstate; i++) {
3428 SPRINTF("%-10s %-12d %-12d %-12ld\n",
3429 states[i].name,
3430 HOSTDATA(shpnt)->count_trans[i],
3431 HOSTDATA(shpnt)->count[i],
3432 HOSTDATA(shpnt)->time[i]);
3433 }
3434 #endif
3435
3436 DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: pos=%p\n", pos);
3437
3438 thislength = pos - (buffer + offset);
3439 DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: length=%d thislength=%d\n", length, thislength);
3440
3441 if(thislength<0) {
3442 DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: output too short\n");
3443 *start = NULL;
3444 return 0;
3445 }
3446
3447 thislength = thislength<length ? thislength : length;
3448
3449 DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: return %d\n", thislength);
3450
3451 *start = buffer + offset;
3452 return thislength < length ? thislength : length;
3453 }
3454
3455 static int aha152x_adjust_queue(struct scsi_device *device)
3456 {
3457 blk_queue_bounce_limit(device->request_queue, BLK_BOUNCE_HIGH);
3458 return 0;
3459 }
3460
3461 static struct scsi_host_template aha152x_driver_template = {
3462 .module = THIS_MODULE,
3463 .name = AHA152X_REVID,
3464 .proc_name = "aha152x",
3465 .proc_info = aha152x_proc_info,
3466 .queuecommand = aha152x_queue,
3467 .eh_abort_handler = aha152x_abort,
3468 .eh_device_reset_handler = aha152x_device_reset,
3469 .eh_bus_reset_handler = aha152x_bus_reset,
3470 .eh_host_reset_handler = aha152x_host_reset,
3471 .bios_param = aha152x_biosparam,
3472 .can_queue = 1,
3473 .this_id = 7,
3474 .sg_tablesize = SG_ALL,
3475 .cmd_per_lun = 1,
3476 .use_clustering = DISABLE_CLUSTERING,
3477 .slave_alloc = aha152x_adjust_queue,
3478 };
3479
3480 #if !defined(PCMCIA)
3481 static int setup_count;
3482 static struct aha152x_setup setup[2];
3483
3484 /* possible i/o addresses for the AIC-6260; default first */
3485 static unsigned short ports[] = { 0x340, 0x140 };
3486
3487 #if !defined(SKIP_BIOSTEST)
3488 /* possible locations for the Adaptec BIOS; defaults first */
3489 static unsigned int addresses[] =
3490 {
3491 0xdc000, /* default first */
3492 0xc8000,
3493 0xcc000,
3494 0xd0000,
3495 0xd4000,
3496 0xd8000,
3497 0xe0000,
3498 0xeb800, /* VTech Platinum SMP */
3499 0xf0000,
3500 };
3501
3502 /* signatures for various AIC-6[23]60 based controllers.
3503 The point in detecting signatures is to avoid useless and maybe
3504 harmful probes on ports. I'm not sure that all listed boards pass
3505 auto-configuration. For those which fail the BIOS signature is
3506 obsolete, because user intervention to supply the configuration is
3507 needed anyway. May be an information whether or not the BIOS supports
3508 extended translation could be also useful here. */
3509 static struct signature {
3510 unsigned char *signature;
3511 int sig_offset;
3512 int sig_length;
3513 } signatures[] =
3514 {
3515 { "Adaptec AHA-1520 BIOS", 0x102e, 21 },
3516 /* Adaptec 152x */
3517 { "Adaptec AHA-1520B", 0x000b, 17 },
3518 /* Adaptec 152x rev B */
3519 { "Adaptec AHA-1520B", 0x0026, 17 },
3520 /* Iomega Jaz Jet ISA (AIC6370Q) */
3521 { "Adaptec ASW-B626 BIOS", 0x1029, 21 },
3522 /* on-board controller */
3523 { "Adaptec BIOS: ASW-B626", 0x000f, 22 },
3524 /* on-board controller */
3525 { "Adaptec ASW-B626 S2", 0x2e6c, 19 },
3526 /* on-board controller */
3527 { "Adaptec BIOS:AIC-6360", 0x000c, 21 },
3528 /* on-board controller */
3529 { "ScsiPro SP-360 BIOS", 0x2873, 19 },
3530 /* ScsiPro-Controller */
3531 { "GA-400 LOCAL BUS SCSI BIOS", 0x102e, 26 },
3532 /* Gigabyte Local-Bus-SCSI */
3533 { "Adaptec BIOS:AVA-282X", 0x000c, 21 },
3534 /* Adaptec 282x */
3535 { "Adaptec IBM Dock II SCSI", 0x2edd, 24 },
3536 /* IBM Thinkpad Dock II */
3537 { "Adaptec BIOS:AHA-1532P", 0x001c, 22 },
3538 /* IBM Thinkpad Dock II SCSI */
3539 { "DTC3520A Host Adapter BIOS", 0x318a, 26 },
3540 /* DTC 3520A ISA SCSI */
3541 };
3542 #endif /* !SKIP_BIOSTEST */
3543
3544 /*
3545 * Test, if port_base is valid.
3546 *
3547 */
3548 static int aha152x_porttest(int io_port)
3549 {
3550 int i;
3551
3552 SETPORT(io_port + O_DMACNTRL1, 0); /* reset stack pointer */
3553 for (i = 0; i < 16; i++)
3554 SETPORT(io_port + O_STACK, i);
3555
3556 SETPORT(io_port + O_DMACNTRL1, 0); /* reset stack pointer */
3557 for (i = 0; i < 16 && GETPORT(io_port + O_STACK) == i; i++)
3558 ;
3559
3560 return (i == 16);
3561 }
3562
3563 static int tc1550_porttest(int io_port)
3564 {
3565 int i;
3566
3567 SETPORT(io_port + O_TC_DMACNTRL1, 0); /* reset stack pointer */
3568 for (i = 0; i < 16; i++)
3569 SETPORT(io_port + O_STACK, i);
3570
3571 SETPORT(io_port + O_TC_DMACNTRL1, 0); /* reset stack pointer */
3572 for (i = 0; i < 16 && GETPORT(io_port + O_TC_STACK) == i; i++)
3573 ;
3574
3575 return (i == 16);
3576 }
3577
3578
3579 static int checksetup(struct aha152x_setup *setup)
3580 {
3581 int i;
3582 for (i = 0; i < ARRAY_SIZE(ports) && (setup->io_port != ports[i]); i++)
3583 ;
3584
3585 if (i == ARRAY_SIZE(ports))
3586 return 0;
3587
3588 if (!request_region(setup->io_port, IO_RANGE, "aha152x")) {
3589 printk(KERN_ERR "aha152x: io port 0x%x busy.\n", setup->io_port);
3590 return 0;
3591 }
3592
3593 if( aha152x_porttest(setup->io_port) ) {
3594 setup->tc1550=0;
3595 } else if( tc1550_porttest(setup->io_port) ) {
3596 setup->tc1550=1;
3597 } else {
3598 release_region(setup->io_port, IO_RANGE);
3599 return 0;
3600 }
3601
3602 release_region(setup->io_port, IO_RANGE);
3603
3604 if ((setup->irq < IRQ_MIN) || (setup->irq > IRQ_MAX))
3605 return 0;
3606
3607 if ((setup->scsiid < 0) || (setup->scsiid > 7))
3608 return 0;
3609
3610 if ((setup->reconnect < 0) || (setup->reconnect > 1))
3611 return 0;
3612
3613 if ((setup->parity < 0) || (setup->parity > 1))
3614 return 0;
3615
3616 if ((setup->synchronous < 0) || (setup->synchronous > 1))
3617 return 0;
3618
3619 if ((setup->ext_trans < 0) || (setup->ext_trans > 1))
3620 return 0;
3621
3622
3623 return 1;
3624 }
3625
3626
3627 static int __init aha152x_init(void)
3628 {
3629 int i, j, ok;
3630 #if defined(AUTOCONF)
3631 aha152x_config conf;
3632 #endif
3633 #ifdef __ISAPNP__
3634 struct pnp_dev *dev=NULL, *pnpdev[2] = {NULL, NULL};
3635 #endif
3636
3637 if ( setup_count ) {
3638 printk(KERN_INFO "aha152x: processing commandline: ");
3639
3640 for (i = 0; i<setup_count; i++) {
3641 if (!checksetup(&setup[i])) {
3642 printk(KERN_ERR "\naha152x: %s\n", setup[i].conf);
3643 printk(KERN_ERR "aha152x: invalid line\n");
3644 }
3645 }
3646 printk("ok\n");
3647 }
3648
3649 #if defined(SETUP0)
3650 if (setup_count < ARRAY_SIZE(setup)) {
3651 struct aha152x_setup override = SETUP0;
3652
3653 if (setup_count == 0 || (override.io_port != setup[0].io_port)) {
3654 if (!checksetup(&override)) {
3655 printk(KERN_ERR "\naha152x: invalid override SETUP0={0x%x,%d,%d,%d,%d,%d,%d,%d}\n",
3656 override.io_port,
3657 override.irq,
3658 override.scsiid,
3659 override.reconnect,
3660 override.parity,
3661 override.synchronous,
3662 override.delay,
3663 override.ext_trans);
3664 } else
3665 setup[setup_count++] = override;
3666 }
3667 }
3668 #endif
3669
3670 #if defined(SETUP1)
3671 if (setup_count < ARRAY_SIZE(setup)) {
3672 struct aha152x_setup override = SETUP1;
3673
3674 if (setup_count == 0 || (override.io_port != setup[0].io_port)) {
3675 if (!checksetup(&override)) {
3676 printk(KERN_ERR "\naha152x: invalid override SETUP1={0x%x,%d,%d,%d,%d,%d,%d,%d}\n",
3677 override.io_port,
3678 override.irq,
3679 override.scsiid,
3680 override.reconnect,
3681 override.parity,
3682 override.synchronous,
3683 override.delay,
3684 override.ext_trans);
3685 } else
3686 setup[setup_count++] = override;
3687 }
3688 }
3689 #endif
3690
3691 #if defined(MODULE)
3692 if (setup_count<ARRAY_SIZE(setup) && (aha152x[0]!=0 || io[0]!=0 || irq[0]!=0)) {
3693 if(aha152x[0]!=0) {
3694 setup[setup_count].conf = "";
3695 setup[setup_count].io_port = aha152x[0];
3696 setup[setup_count].irq = aha152x[1];
3697 setup[setup_count].scsiid = aha152x[2];
3698 setup[setup_count].reconnect = aha152x[3];
3699 setup[setup_count].parity = aha152x[4];
3700 setup[setup_count].synchronous = aha152x[5];
3701 setup[setup_count].delay = aha152x[6];
3702 setup[setup_count].ext_trans = aha152x[7];
3703 #if defined(AHA152X_DEBUG)
3704 setup[setup_count].debug = aha152x[8];
3705 #endif
3706 } else if(io[0]!=0 || irq[0]!=0) {
3707 if(io[0]!=0) setup[setup_count].io_port = io[0];
3708 if(irq[0]!=0) setup[setup_count].irq = irq[0];
3709
3710 setup[setup_count].scsiid = scsiid[0];
3711 setup[setup_count].reconnect = reconnect[0];
3712 setup[setup_count].parity = parity[0];
3713 setup[setup_count].synchronous = sync[0];
3714 setup[setup_count].delay = delay[0];
3715 setup[setup_count].ext_trans = exttrans[0];
3716 #if defined(AHA152X_DEBUG)
3717 setup[setup_count].debug = debug[0];
3718 #endif
3719 }
3720
3721 if (checksetup(&setup[setup_count]))
3722 setup_count++;
3723 else
3724 printk(KERN_ERR "aha152x: invalid module params io=0x%x, irq=%d,scsiid=%d,reconnect=%d,parity=%d,sync=%d,delay=%d,exttrans=%d\n",
3725 setup[setup_count].io_port,
3726 setup[setup_count].irq,
3727 setup[setup_count].scsiid,
3728 setup[setup_count].reconnect,
3729 setup[setup_count].parity,
3730 setup[setup_count].synchronous,
3731 setup[setup_count].delay,
3732 setup[setup_count].ext_trans);
3733 }
3734
3735 if (setup_count<ARRAY_SIZE(setup) && (aha152x1[0]!=0 || io[1]!=0 || irq[1]!=0)) {
3736 if(aha152x1[0]!=0) {
3737 setup[setup_count].conf = "";
3738 setup[setup_count].io_port = aha152x1[0];
3739 setup[setup_count].irq = aha152x1[1];
3740 setup[setup_count].scsiid = aha152x1[2];
3741 setup[setup_count].reconnect = aha152x1[3];
3742 setup[setup_count].parity = aha152x1[4];
3743 setup[setup_count].synchronous = aha152x1[5];
3744 setup[setup_count].delay = aha152x1[6];
3745 setup[setup_count].ext_trans = aha152x1[7];
3746 #if defined(AHA152X_DEBUG)
3747 setup[setup_count].debug = aha152x1[8];
3748 #endif
3749 } else if(io[1]!=0 || irq[1]!=0) {
3750 if(io[1]!=0) setup[setup_count].io_port = io[1];
3751 if(irq[1]!=0) setup[setup_count].irq = irq[1];
3752
3753 setup[setup_count].scsiid = scsiid[1];
3754 setup[setup_count].reconnect = reconnect[1];
3755 setup[setup_count].parity = parity[1];
3756 setup[setup_count].synchronous = sync[1];
3757 setup[setup_count].delay = delay[1];
3758 setup[setup_count].ext_trans = exttrans[1];
3759 #if defined(AHA152X_DEBUG)
3760 setup[setup_count].debug = debug[1];
3761 #endif
3762 }
3763 if (checksetup(&setup[setup_count]))
3764 setup_count++;
3765 else
3766 printk(KERN_ERR "aha152x: invalid module params io=0x%x, irq=%d,scsiid=%d,reconnect=%d,parity=%d,sync=%d,delay=%d,exttrans=%d\n",
3767 setup[setup_count].io_port,
3768 setup[setup_count].irq,
3769 setup[setup_count].scsiid,
3770 setup[setup_count].reconnect,
3771 setup[setup_count].parity,
3772 setup[setup_count].synchronous,
3773 setup[setup_count].delay,
3774 setup[setup_count].ext_trans);
3775 }
3776 #endif
3777
3778 #ifdef __ISAPNP__
3779 for(i=0; setup_count<ARRAY_SIZE(setup) && id_table[i].vendor; i++) {
3780 while ( setup_count<ARRAY_SIZE(setup) &&
3781 (dev=pnp_find_dev(NULL, id_table[i].vendor, id_table[i].function, dev)) ) {
3782 if (pnp_device_attach(dev) < 0)
3783 continue;
3784
3785 if (pnp_activate_dev(dev) < 0) {
3786 pnp_device_detach(dev);
3787 continue;
3788 }
3789
3790 if (!pnp_port_valid(dev, 0)) {
3791 pnp_device_detach(dev);
3792 continue;
3793 }
3794
3795 if (setup_count==1 && pnp_port_start(dev, 0)==setup[0].io_port) {
3796 pnp_device_detach(dev);
3797 continue;
3798 }
3799
3800 setup[setup_count].io_port = pnp_port_start(dev, 0);
3801 setup[setup_count].irq = pnp_irq(dev, 0);
3802 setup[setup_count].scsiid = 7;
3803 setup[setup_count].reconnect = 1;
3804 setup[setup_count].parity = 1;
3805 setup[setup_count].synchronous = 1;
3806 setup[setup_count].delay = DELAY_DEFAULT;
3807 setup[setup_count].ext_trans = 0;
3808 #if defined(AHA152X_DEBUG)
3809 setup[setup_count].debug = DEBUG_DEFAULT;
3810 #endif
3811 #if defined(__ISAPNP__)
3812 pnpdev[setup_count] = dev;
3813 #endif
3814 printk (KERN_INFO
3815 "aha152x: found ISAPnP adapter at io=0x%03x, irq=%d\n",
3816 setup[setup_count].io_port, setup[setup_count].irq);
3817 setup_count++;
3818 }
3819 }
3820 #endif
3821
3822 #if defined(AUTOCONF)
3823 if (setup_count<ARRAY_SIZE(setup)) {
3824 #if !defined(SKIP_BIOSTEST)
3825 ok = 0;
3826 for (i = 0; i < ARRAY_SIZE(addresses) && !ok; i++) {
3827 void __iomem *p = ioremap(addresses[i], 0x4000);
3828 if (!p)
3829 continue;
3830 for (j = 0; j<ARRAY_SIZE(signatures) && !ok; j++)
3831 ok = check_signature(p + signatures[j].sig_offset,
3832 signatures[j].signature, signatures[j].sig_length);
3833 iounmap(p);
3834 }
3835 if (!ok && setup_count == 0)
3836 return -ENODEV;
3837
3838 printk(KERN_INFO "aha152x: BIOS test: passed, ");
3839 #else
3840 printk(KERN_INFO "aha152x: ");
3841 #endif /* !SKIP_BIOSTEST */
3842
3843 ok = 0;
3844 for (i = 0; i < ARRAY_SIZE(ports) && setup_count < 2; i++) {
3845 if ((setup_count == 1) && (setup[0].io_port == ports[i]))
3846 continue;
3847
3848 if (!request_region(ports[i], IO_RANGE, "aha152x")) {
3849 printk(KERN_ERR "aha152x: io port 0x%x busy.\n", ports[i]);
3850 continue;
3851 }
3852
3853 if (aha152x_porttest(ports[i])) {
3854 setup[setup_count].tc1550 = 0;
3855
3856 conf.cf_port =
3857 (GETPORT(ports[i] + O_PORTA) << 8) + GETPORT(ports[i] + O_PORTB);
3858 } else if (tc1550_porttest(ports[i])) {
3859 setup[setup_count].tc1550 = 1;
3860
3861 conf.cf_port =
3862 (GETPORT(ports[i] + O_TC_PORTA) << 8) + GETPORT(ports[i] + O_TC_PORTB);
3863 } else {
3864 release_region(ports[i], IO_RANGE);
3865 continue;
3866 }
3867
3868 release_region(ports[i], IO_RANGE);
3869
3870 ok++;
3871 setup[setup_count].io_port = ports[i];
3872 setup[setup_count].irq = IRQ_MIN + conf.cf_irq;
3873 setup[setup_count].scsiid = conf.cf_id;
3874 setup[setup_count].reconnect = conf.cf_tardisc;
3875 setup[setup_count].parity = !conf.cf_parity;
3876 setup[setup_count].synchronous = conf.cf_syncneg;
3877 setup[setup_count].delay = DELAY_DEFAULT;
3878 setup[setup_count].ext_trans = 0;
3879 #if defined(AHA152X_DEBUG)
3880 setup[setup_count].debug = DEBUG_DEFAULT;
3881 #endif
3882 setup_count++;
3883
3884 }
3885
3886 if (ok)
3887 printk("auto configuration: ok, ");
3888 }
3889 #endif
3890
3891 printk("%d controller(s) configured\n", setup_count);
3892
3893 for (i=0; i<setup_count; i++) {
3894 if ( request_region(setup[i].io_port, IO_RANGE, "aha152x") ) {
3895 struct Scsi_Host *shpnt = aha152x_probe_one(&setup[i]);
3896
3897 if( !shpnt ) {
3898 release_region(setup[i].io_port, IO_RANGE);
3899 #if defined(__ISAPNP__)
3900 } else if( pnpdev[i] ) {
3901 HOSTDATA(shpnt)->pnpdev=pnpdev[i];
3902 pnpdev[i]=NULL;
3903 #endif
3904 }
3905 } else {
3906 printk(KERN_ERR "aha152x: io port 0x%x busy.\n", setup[i].io_port);
3907 }
3908
3909 #if defined(__ISAPNP__)
3910 if( pnpdev[i] )
3911 pnp_device_detach(pnpdev[i]);
3912 #endif
3913 }
3914
3915 return 0;
3916 }
3917
3918 static void __exit aha152x_exit(void)
3919 {
3920 struct aha152x_hostdata *hd, *tmp;
3921
3922 list_for_each_entry_safe(hd, tmp, &aha152x_host_list, host_list) {
3923 struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata);
3924
3925 aha152x_release(shost);
3926 }
3927 }
3928
3929 module_init(aha152x_init);
3930 module_exit(aha152x_exit);
3931
3932 #if !defined(MODULE)
3933 static int __init aha152x_setup(char *str)
3934 {
3935 #if defined(AHA152X_DEBUG)
3936 int ints[11];
3937 #else
3938 int ints[10];
3939 #endif
3940 get_options(str, ARRAY_SIZE(ints), ints);
3941
3942 if(setup_count>=ARRAY_SIZE(setup)) {
3943 printk(KERN_ERR "aha152x: you can only configure up to two controllers\n");
3944 return 1;
3945 }
3946
3947 setup[setup_count].conf = str;
3948 setup[setup_count].io_port = ints[0] >= 1 ? ints[1] : 0x340;
3949 setup[setup_count].irq = ints[0] >= 2 ? ints[2] : 11;
3950 setup[setup_count].scsiid = ints[0] >= 3 ? ints[3] : 7;
3951 setup[setup_count].reconnect = ints[0] >= 4 ? ints[4] : 1;
3952 setup[setup_count].parity = ints[0] >= 5 ? ints[5] : 1;
3953 setup[setup_count].synchronous = ints[0] >= 6 ? ints[6] : 1;
3954 setup[setup_count].delay = ints[0] >= 7 ? ints[7] : DELAY_DEFAULT;
3955 setup[setup_count].ext_trans = ints[0] >= 8 ? ints[8] : 0;
3956 #if defined(AHA152X_DEBUG)
3957 setup[setup_count].debug = ints[0] >= 9 ? ints[9] : DEBUG_DEFAULT;
3958 if (ints[0] > 9) {
3959 printk(KERN_NOTICE "aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>"
3960 "[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>[,<DEBUG>]]]]]]]]\n");
3961 #else
3962 if (ints[0] > 8) { /*}*/
3963 printk(KERN_NOTICE "aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>"
3964 "[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>]]]]]]]\n");
3965 #endif
3966 } else {
3967 setup_count++;
3968 return 0;
3969 }
3970
3971 return 1;
3972 }
3973 __setup("aha152x=", aha152x_setup);
3974 #endif
3975
3976 #endif /* !PCMCIA */
Linux kernel - Deliverables
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